Buy Telescopes

Telescopes [ Show All ]

Coronado Instruments SolarMax II 90 w/BF15 Blocking Filter

SKU: SMT90-15

Price: $3,499.00

In-Stock - Ships from Warehouse
Celestron NexStar Evolution 9.25" SCT Telescope

SKU: CEL-12092

Price: $2,199.00

In-Stock - Ships from Warehouse
Borg 90FL OTA (black)

SKU: BORG6291

Price: $1,750.00

In-Stock - Ships from Warehouse
Celestron EdgeHD 8 Optical Tube Assembly

SKU: CEL-91030-XLT

Price: $1,349.00

In-Stock - Ships from Warehouse
Meade 12 Inch LX90-ACF Advanced Coma Free w/GPS w/UHTC Coatings

SKU: 1210-90-03

Price: $2,899.00

In-Stock - Ships from Warehouse
Tele Vue TV-76 76mm f/6 APO Doublet Refractor Telescope (Green, OTA Only)

SKU: GXO-3065

Price: $1,695.00

In-Stock - Ships from Warehouse
Celestron Omni XLT 102 Telescope

SKU: CEL-21088

Price: $509.95

In-Stock - Ships from Warehouse
iOptron Solar 60 60mm f/6 Achro Refractor GoTo GPS Telescope with Solar Filter

SKU: 8807

Price: $399.00

In-Stock - Ships from Warehouse
Stellarvue SVR102T-IS2 STANDARD IMAGING REFRACTOR SYSTEM

SKU: SVR102T-IS2

Price: $2,495.00

In-Stock - Ships from Warehouse
iOptron Photron 150mm f/9 Ritchey-Chretien Catadioptric GoTo EQ Telescope

SKU: IO-12150

Price: $1,498.00

In-Stock - Ships from Warehouse
TELEVUE TV-85 OTA WHITE

SKU: WXO-3372

Price: $2,125.00

In-Stock - Ships from Warehouse
Coronado Instruments SolarMax II Double Stack 90 w/BF15 Blocking Filter

SKU: SMT90DS-15

Price: $5,399.00

In-Stock - Ships from Warehouse
Celestron C11-A XLT (CG-5) Optical Tube Assembly

SKU: CEL-91067-XLT

Price: $2,499.95

In-Stock - Ships from Warehouse
Celestron SkyProdigy 6 Computerized Telescope

SKU: CEL-11076

Price: $999.95

In-Stock - Ships from Warehouse
Coronado Instruments SolarMax II 60 w/BF10 Blocking Filter

SKU: SMT60-10

Price: $1,499.00

In-Stock - Ships from Warehouse
Celestron NexStar Evolution 6" SCT Telescope

SKU: CEL-12090

Price: $1,299.00

In-Stock - Ships from Warehouse
iOptron Solar 60 60mm f/6 Achro Refractor GoTo GPS Telescope with Eyepiece Imager

SKU: 8806

Price: $479.00

In-Stock - Ships from Warehouse
Meade 16 Inch LX200-ACF Advanced Coma Free OTA w/UHTC Coatings w/o Tripod

SKU: 1610-60-02N

Price: $13,499.00

In-Stock - Ships from Warehouse
Celestron CPC Deluxe 1100 HD Computerized Telescope

SKU: CEL-11009

Price: $3,879.00

In-Stock - Ships from Warehouse
Celestron AMBASSADOR EXECUTIVE 50 TELESCOPE

SKU: CEL-22303

Price: $399.95

In-Stock - Ships from Warehouse
Borg 36ED Objective Assembly (black)

SKU: BORG2037

Price: $259.00

In-Stock - Ships from Warehouse

Night Vision & Thermal Imaging [ Show All ]

Trijicon 4x32 ACOG ECOS, Dual Illuminated Green Crosshair 5.56 Reticle w/ Backup Iron Sights, Quick Release Mount & LED 3.25 MOA Red Dot RMR Type 2, Cerakote FDE, 100554

UPC: 719307311824

SKU: RS-TRTA31-D-100554

Price: $1,588.01

In-Stock - Ships from Warehouse
TRIJICON IR HUNTER MK3 60MM BLK

UPC: 719307800717

SKU: HK-TRI IRMK360

Price: $8,894.19

In-Stock - Ships from Warehouse
Bushnell 6x50 Equinox Digital Night Vision Black Monocular 260150

UPC: 029757601506

SKU: GA-BUS260150

Price: $255.76

In-Stock - Ships from Warehouse
FIREFIELD NVMT 4x50 Night Vision Monocular FF24127

UPC: 812495020605

SKU: FF24127

Price: $249.99

In-Stock - Ships from Warehouse
Sightmark Photon XT 4.6x42S Digital Night Vision Riflescope

UPC: 812495020087

SKU: HK-SM 18008

Price: $480.59

In-Stock - Ships from Warehouse
PULSAR HELION XQ30F 2.5-10X22

UPC: 812495022999

SKU: SS-31644

Price: $2,537.80

In-Stock - Ships from Warehouse
Bushnell 260228 Equinox Monocular 1st Gen 2x 28mm 112 ft @ 100 yds FOV

UPC: 29757260192

SKU: GA-BUS260228

Price: $204.40

In-Stock - Ships from Warehouse
ATN BinoX-HD 4x Smart Day and Night Binocular w/ GPS DGBNBNHDX2

UPC: 658175117773

SKU: HK-ATN DGBNBNHDX2

Price: $420.49

In-Stock - Ships from Warehouse
ATN ThOR 4, 384x288 Sensor, 2-8x Thermal Smart HD Rifle Scope w/WiFi, GPS, Black, TIWST4382A

UPC: 658175115083

SKU: HK-ATN TIWST4382A

Price: $2,463.12

In-Stock - Ships from Warehouse
ATN NVB5X Binoculars Gen 2 NVBNB05X20

UPC: 658175121220

SKU: SS-58333

Price: $1,990.71

In-Stock - Ships from Warehouse
Trijicon Electro Optics IR PATROL M250 19mm Thermal Imaging Monocular, 60Hz, Black IRMO-250

UPC: 719307800748

SKU: RS-TRIRMO-250

Price: $6,433.43

In-Stock - Ships from Warehouse
ATN ThOR-HD, 384x288 Sensor, 2-8x Thermal Smart HD Rifle Scope w/WiFi, GPS, Black TIWSTH382A

UPC: 658175112303

SKU: HK-ATN TIWSTH382A

Price: $2,099.99

In-Stock - Ships from Warehouse
LTO Quest Thermal Imager

UPC: 030317017484

SKU: EL-0937733

Price: $428.59

In-Stock - Ships from Warehouse
ATN THOR 4 4-40X 640X 480 THERMAL RIFLESCOPE

UPC: 658175115151

SKU: HK-ATN TIWST4644A

Price: $4,302.26

In-Stock - Ships from Warehouse
ATN ThOR-LT 3-6x Thermal Rifle Scope, Black, TIWSTLT136X

UPC: 658175115403

SKU: GA-ATNTIWSTLT136X

Price: $1,166.33

In-Stock - Ships from Warehouse
Trijicon Electro Optics IR PATROL LE100 19mm Thermal Imaging Monocular, 30Hz, Black IRMO-100

UPC: 719307800724

SKU: RS-TRIRMO-100

Price: $5,642.73

In-Stock - Ships from Warehouse
Sightmark Photon RT Digital Night Vision Riflescope 4.5x42S Black

UPC: 812495024344

SKU: SS-101553

Price: $501.95

In-Stock - Ships from Warehouse
ATN THOR640 1-8X NMS 640X512 19MM

UPC: 658175114468

SKU: CH-ASTIWSMT641N

Price: $4,358.85

In-Stock - Ships from Warehouse
Pulsar 1.4-11.2x Thermal Imaging Scope Helion XP28

UPC: 812495023293

SKU: ZD-PL77403

Price: $3,498.37

In-Stock - Ships from Warehouse
TRIJICON IR HUNTER MK2 35MM BLK

UPC: 719307800694

SKU: EL-0938169

Price: $6,917.44

In-Stock - Ships from Warehouse
ATN ThOR 4, 384x288 Sensor, 4.5-18x Thermal Smart HD Rifle Scope w/WiFi, GPS, Black, TIWST4384A

UPC: 658175115090

SKU: HK-ATN TIWST4384A

Price: $2,919.48

In-Stock - Ships from Warehouse

Telescope Mounts [ Show All ]

CEM120EC2 - Center Balance Equatorial Mount

SKU: IO-7302

Price: $6,998.00

In-Stock - Ships from Warehouse
iOptron AZ Mount Pro GoTo Alt-Az Mount with Tri-Pier and Case

SKU: 8900-TP-RC

Price: $1,748.00

In-Stock - Ships from Warehouse
Mathis Instruments German Equatorial Mount

SKU: MI-GEM

Price: $14,400.00

In-Stock - Ships from Warehouse
iOptron iEQ30 Pro EQ GoTo Mount with 2" Tripod

SKU: 3002E

Price: $1,298.00

In-Stock - Ships from Warehouse
Wimberley Sidekick Head

SKU: SK-100

Price: $250.00

In-Stock - Ships from Warehouse
iOptron AZ Mount Pro GoTo Alt-Az Mount with Tri-Pier

SKU: 8900-TP

Price: $1,598.00

In-Stock - Ships from Warehouse
Takahashi EM-500 Temma-2Z Equatorial Mount

SKU: TTM74110

Price: $13,020.00

In-Stock - Ships from Warehouse
Mathis Instruments Altazimuth Fork Mount

SKU: MI-AFM

Price: $14,600.00

In-Stock - Ships from Warehouse
TeleVue Encoder Kit for Panoramic/Tele-Pod/Gibraltar Mounts

SKU: STN-4001

Price: $280.00

In-Stock - Ships from Warehouse
TeleVue Gibraltar HD4 Alt-Az Mount

SKU: G4M-6014

Price: $995.00

In-Stock - Ships from Warehouse
Losmandy Titan RA Axis Only with Tucked Motor

SKU: TRA-AXIS

Price: $1,995.00

In-Stock - Ships from Warehouse
Losmandy G-11 RA Axis Only with Tucked Motor

SKU: G11RA-AXIS

Price: $1,045.00

In-Stock - Ships from Warehouse
iOptron CEM25P Equatorial GoTo Mount (2" Tripod, Hard Case

SKU: 7102P-HC

Price: $1,048.00

In-Stock - Ships from Warehouse
Losmandy Gemini 2 Retro-fit Kit for GM-8 / G-11 / HGM200 / G9

SKU: GEMINI 2 KIT

Price: $1,595.00

In-Stock - Ships from Warehouse
Celestron Omni CG-4 Telescope Mount

SKU: CEL-91509

Price: $299.95

In-Stock - Ships from Warehouse
Tele Vue Tele-Pod Advanced Alt-Az Telescope Mount with Sky Tour Computer

SKU: TPS-3024

Price: $1,240.00

In-Stock - Ships from Warehouse
Mathis Instruments Equatorial Fork Mount

SKU: MI-EFM

Price: $14,800.00

In-Stock - Ships from Warehouse
iOptron iEQ30 Pro EQ GoTo Mount with 1.5" Tripod & Hard Case

SKU: 3000E-HC

Price: $1,298.00

In-Stock - Ships from Warehouse
iOptron iEQ30 Pro EQ GoTo Mount with 2" Tripod & Hard Case

SKU: 3002E-HC

Price: $1,398.00

In-Stock - Ships from Warehouse
iOptron AZ Mount Pro GoTo Alt-Az Mount with Tripod

SKU: 8900

Price: $1,299.00

In-Stock - Ships from Warehouse
iOptron CEM25P Equatorial GoTo Mount (1.5" Tripod, Hard Case)

SKU: 7100P-HC

Price: $948.00

In-Stock - Ships from Warehouse

Eyepieces [ Show All ]

TeleVue 22mm Nagler Type 4

SKU: EN4-22.0

Price: $465.00

In-Stock - Ships from Warehouse
TeleVue 27mm Panoptic

SKU: EPO-27.0

Price: $346.00

In-Stock - Ships from Warehouse
Baader 9mm Morpheus 76° Eyepiece - 1.25"/2"

SKU: MORPH-9

Price: $239.00

In-Stock - Ships from Warehouse
Baader 14mm Morpheus 76° Eyepiece

SKU: MORPH-14

Price: $239.00

In-Stock - Ships from Warehouse
Baader 6.5mm Morpheus 76° Eyepiece - 1.25"/2"

SKU: MORPH-6

Price: $239.00

In-Stock - Ships from Warehouse
Baader 17.5mm Morpheus 76° Eyepiece - 1.25"/2"

SKU: MORPH-17

Price: $239.00

In-Stock - Ships from Warehouse
Baader 4.5mm Morpheus 76º Eyepiece - 1.25"/2"

SKU: MORPH-4

Price: $239.00

In-Stock - Ships from Warehouse
TeleVue 21mm ETHOS Eyepiece

SKU: ETH-21.0

Price: $854.00

In-Stock - Ships from Warehouse
TeleVue 6MM Delos Eyepiece

SKU: EDL-06.0

Price: $352.00

In-Stock - Ships from Warehouse
Meade 5000 Series Eyepiece MWA 100 Degree 15mm 2" 607017

SKU: 607017

Price: $249.99

In-Stock - Ships from Warehouse
Baader Planetarium Morpheus 76º Eyepiece Set

SKU: MORP-SET

Price: $1,390.00

In-Stock - Ships from Warehouse
TeleVue 12MM Delos Eyepiece

SKU: EDL-12.0

Price: $352.00

In-Stock - Ships from Warehouse
TeleVue 14MM Delos Eyepiece

SKU: EDL-14.0

Price: $352.00

In-Stock - Ships from Warehouse
TeleVue 17mm Ethos Eyepiece

SKU: ETH-17.0

Price: $760.00

In-Stock - Ships from Warehouse
Celestron 2" Eyepiece and Filter Kit

SKU: CEL-94305

Price: $299.95

In-Stock - Ships from Warehouse
TeleVue 5mm Nagler Type 6

SKU: EN6-05.0

Price: $321.00

In-Stock - Ships from Warehouse
TeleVue 3.7mm ETHOS-SX Eyepiece

SKU: ETH-03.7

Price: $628.00

In-Stock - Ships from Warehouse
TeleVue 7mm Nagler Type 6

SKU: EN6-07.0

Price: $321.00

In-Stock - Ships from Warehouse
Baader Planetarium Hyperion Aspheric 72 degree 36mm Eyepiece

SKU: HYP-36

Price: $219.00

In-Stock - Ships from Warehouse
Celestron Luminos 23 mm Eyepiece

SKU: CEL-93434

Price: $209.95

In-Stock - Ships from Warehouse
TeleVue 3mm-6mm Nagler Zoom

SKU: ENZ-0306

Price: $410.00

In-Stock - Ships from Warehouse

Filters (Visual) [ Show All ]

SBIG 65mm Set of 3 NB filters

SKU: 50-3650NBB

Price: $1,419.00

In-Stock - Ships from Warehouse
Baader Canon EOS DSLR T-Ring with 7nm H-Alpha Filter # DSLR-HA

SKU: DSLRT-HA

Price: $357.00

In-Stock - Ships from Warehouse
SBIG Custom Scientific 1.25″ Round V Filter

SKU: 50884

Price: $280.00

In-Stock - Ships from Warehouse
Baader Planetarium 2" Baader Safety Cool Herschel Prism Version P

SKU: HERSCH-P

Price: $729.00

In-Stock - Ships from Warehouse
Coronado Instruments SolarMax II 90mm Double Stacking Etalon

SKU: SME-90

Price: $2,399.00

In-Stock - Ships from Warehouse
SBIG Custom Scientific 1.25″ Round R Filter

SKU: 50885

Price: $280.00

In-Stock - Ships from Warehouse
BAADER - D-ERF ENERGY REJECTION FILTER 90MM WITH IR-CUT DIELECTRIC COATING

SKU: DERF-90

Price: $497.00

In-Stock - Ships from Warehouse
SBIG 36mm LRGB Set

SKU: 50-4360CIB

Price: $477.00

In-Stock - Ships from Warehouse
SBIG Custom Scientific 2″ Round BVR Filter Set - 50-3500PHC

SKU: 50-3500PHC

Price: $945.00

In-Stock - Ships from Warehouse
SBIG Custom Scientific 1.25″ BVR Filter Set

SKU: 50-3108CFW

Price: $750.00

In-Stock - Ships from Warehouse
Baader Planetarium Baader RGB Filter Set 1 1/4" with UV/IR Cut L-Filter (Optically Polished)

SKU: FLRGB-1

Price: $379.00

In-Stock - Ships from Warehouse
BAADER - D-ERF ENERGY REJECTION FILTER 160MM WITH IR-CUT DIELECTRIC COATING

SKU: DERF-160

Price: $1,254.00

In-Stock - Ships from Warehouse
Baader 2" SolarSpectrum 0.4x Research Grade Telecompressor

SKU: CMPRSR2

Price: $369.00

In-Stock - Ships from Warehouse
Baader Planetarium Visual AstroSolar Safety Film - 46" x 46" Sheet

SKU: ASOLV-L

Price: $337.00

In-Stock - Ships from Warehouse
SBIG Custom Scientific 1.25″ Round U Filter

SKU: 50882

Price: $280.00

In-Stock - Ships from Warehouse
Baader Planetarium 2" Baader Safety Cool Herschel Prism Version V

SKU: HERSCH-V

Price: $639.00

In-Stock - Ships from Warehouse
Coronado Instruments SolarMax II 60mm Double Stacking Etalon

SKU: SME-60

Price: $899.00

In-Stock - Ships from Warehouse
Coronado Instruments SolarMax II 60 Ha Filter w/BF30 Blocking Filter

SKU: SMF60-30

Price: $2,499.00

In-Stock - Ships from Warehouse
BAADER - D-ERF ENERGY REJECTION FILTER 135MM WITH IR-CUT DIELECTRIC COATING

SKU: DERF-135

Price: $999.00

In-Stock - Ships from Warehouse
BAADER - D-ERF ENERGY REJECTION FILTER 180MM WITH IR-CUT DIELECTRIC COATING

SKU: DERF-180

Price: $1,857.00

In-Stock - Ships from Warehouse
SBIG 1.25″ Narrowband set

SKU: 50-3125NBB

Price: $473.00

In-Stock - Ships from Warehouse

Imaging / CCD / CMOS [ Show All ]

FLI - HIGH SPEED FILTER WHEEL - 6 X 25MM ROUND FILTERS

SKU: HS-625

Price: $3,995.00

In-Stock - Ships from Warehouse
FLI Research Grade 65mm Square Bessell R filter

SKU: RG 65S R

Price: $950.00

In-Stock - Ships from Warehouse
QHY294C 11.6 Megapixel 4/3-Inch Back-Illuminated Color CMOS Camera

SKU: QHY294C

Price: $999.00

In-Stock - Ships from Warehouse
SBIG CFW-402 BVIC

SKU: CFW-402-BVIC

Price: $379.00

In-Stock - Ships from Warehouse
FLI 5-Position CFW for 2" or 50mm Diameter Filters

SKU: CFW-1-5

Price: $895.00

In-Stock - Ships from Warehouse
SBIG 65mm Set of 3 NB filters

SKU: 50-3650NBB

Price: $1,419.00

In-Stock - Ships from Warehouse
FLI Research Grade 50mm Diameter LRGB Filters

SKU: RG 50D LRGB

Price: $875.00

In-Stock - Ships from Warehouse
FLI - MICROLINE SERIES - KAI-08051 INTERLINE MONOCHROME CCD CAMERA with 25mm shutter

SKU: ML8051 25mm

Price: $5,695.00

In-Stock - Ships from Warehouse
Finger Lakes Instruments (CCD) Proline 4710 w/e2v Technologies 4710 CCD (63.5mm Shutter)

SKU: PL4710

Price: $11,995.00

In-Stock - Ships from Warehouse
FLI - PROLINE SERIES - E2V CCD42-10-1-970 BACK ILLUMINATED MIDBAND LOW USAGE SENSOR CCD CAMERA

SKU: PL4210-MB G1

Price: $17,245.00

In-Stock - Ships from Warehouse
FLI - MICROLINE SERIES - KAI-4050 INTERLINE MONOCHROME CCD CAMERA with 25mm shutter

SKU: ML4050 25mm

Price: $5,295.00

In-Stock - Ships from Warehouse
FLI Research Grade 28mm Diameter Bessell B filter

SKU: RG 28D B

Price: $200.00

In-Stock - Ships from Warehouse
FLI Research Grade 50mm Diameter H-alpha 3 nm

SKU: RG 50D Ha (3nm)

Price: $760.00

In-Stock - Ships from Warehouse
FLI PROLINE CCD CAMERA WITH E2V 77 GRADE 1 MIDBAND SENSOR & 65 MM SHUTTER

SKU: PL77-MB G1

Price: $13,295.00

In-Stock - Ships from Warehouse
SBIG Custom Scientific 2″ Round BVR Filter Set - 50-3500PHC

SKU: 50-3500PHC

Price: $945.00

In-Stock - Ships from Warehouse
Finger Lakes Instruments (CCD) ProLine 16801 w/KAI-16801 Truesense Full Frame CCD (63.5mm Shutter)

SKU: PL16801

Price: $26,495.00

In-Stock - Ships from Warehouse
FLI Research Grade 65mm Square Red filter

SKU: RG 65S Red

Price: $695.00

In-Stock - Ships from Warehouse
Finger Lakes Instruments (CCD) ProLine 16803 w/KAI-16803 Truesense Full Frame CCD (63.5mm Shutter)

SKU: PL16803

Price: $10,995.00

In-Stock - Ships from Warehouse
SBIG ST-I Guiding Kit

SKU: KIT-ST-I-GUIDER

Price: $349.00

In-Stock - Ships from Warehouse
FLI 12 position CFW for 2" or 50mm diameter filters

SKU: CFW-3-12

Price: $1,995.00

In-Stock - Ships from Warehouse
FLI - MICROLINE SERIES - CCD42-10-1-313 BACK ILLUMINATED ENHANCED UV CCD CAMERA WITH 45 HIGH SPEED SHUTTER

SKU: ML4210-UV G1

Price: $17,845.00

In-Stock - Ships from Warehouse

Newly Added Products [ Show All ]

BAADER ULTRA-NARROWBAND 4.5NM SII CCD-FILTER 50X50MM (3MM GLASS THICKNESS) SQUARE

SKU: FSIINU-SQ50

Price: $567.00

In-Stock - Ships from Warehouse
BAADER ULTRA-NARROWBAND 4.5NM SII CCD-FILTER 65X65MM (3MM GLASS THICKNESS) SQUARE

SKU: FSIINU-SQ65

Price: $689.00

In-Stock - Ships from Warehouse
SET OF 5 PHOTOMETRIC UBVRI FILTERS 50X50MM SQUARE UNMOUNTED (4MM GLASS, OPTICALLY POLISHED)

SKU: FUBVRIS-SQ50

Price: $1,999.00

In-Stock - Ships from Warehouse
URBAN 90 GOTO WITH PRO MOUNT

SKU: IO-10090

Price: $548.00

In-Stock - Ships from Warehouse
BAADER F/2 HIGHSPEED-FILTER O-III FILTER 50.4MM

SKU: FOIIIHS-RD50

Price: $324.00

In-Stock - Ships from Warehouse
BAADER F/2 HIGHSPEED-FILTER S-II FILTER 50X50MM

SKU: FSIIHS-SQ50

Price: $369.00

In-Stock - Ships from Warehouse
BAADER F/2 HIGHSPEED-FILTER S-II FILTER 50.4MM

SKU: FSIIHS-RD50

Price: $329.00

In-Stock - Ships from Warehouse
BAADER UHC-S NEBULA FILTER 50X50 SQUARE, L-BOOSTER

SKU: FUHC-SQ50

Price: $226.00

In-Stock - Ships from Warehouse
BAADER F/2 HIGHSPEED-FILTER O-III 50X50MM SQUARE

SKU: FOIIIHS-SQ50

Price: $359.00

In-Stock - Ships from Warehouse
BAADER 3.8 OD DIGITAL SOLAR FILTER 280 MM FOR IMAGING USE ONLY - NEVER FOR VISUAL USE

SKU: BDSF-280

Price: $208.00

In-Stock - Ships from Warehouse
BAADER ULTRA-NARROWBAND 4.5NM SII CCD-FILTER 2", LPFC-MOUNTED

SKU: FSIINU-2

Price: $419.00

In-Stock - Ships from Warehouse
URBAN 150 W/AZ PRO MOUNT AND HARD CASE

SKU: IO-10150

Price: $1,899.00

In-Stock - Ships from Warehouse
BAADER ULTRA-NARROWBAND 4.5NM SII CCD-FILTER 50.4MM (3MM GLASS THICKNESS) ROUND

SKU: FSIINU-RD50

Price: $479.00

In-Stock - Ships from Warehouse
BAADER ULTRA-NARROWBAND 4.5NM SII CCD-FILTER 31MM

SKU: FSIINU-RD31

Price: $309.00

In-Stock - Ships from Warehouse
BAADER ULTRA-NARROWBAND 4.5NM SII CCD-FILTER 36MM

SKU: FSIINU-RD36

Price: $349.00

In-Stock - Ships from Warehouse
BAADER ULTRA-NARROWBAND 4.5NM SII CCD-FILTER 1.25", LPFC-MOUNTED

SKU: FSIINU-1

Price: $274.00

In-Stock - Ships from Warehouse
BAADER M68 FIELD FLATTENER, WORKS WITH ZEISS APQS AND BAADER APO 95/560 TRAVEL COMPANION

SKU: FF-M68

Price: $869.00

In-Stock - Ships from Warehouse

News [ All News ]

Crew Dragon test mishap could delay first SpaceX human flight

SpaceX’s Crew Dragon capsule experienced an “anomaly” during a rocket test on Saturday that sent smoke drifting high over its launchpad at the Kennedy Space Center in Florida. Elon Musk and SpaceX have been short on details so far, but unconfirmed video footage shows the spacecraft being destroyed. The same Crew Dragon capsule completed a flawless flight to the Internat...

Mercury has a heart of iron; literally

Using sophisticated software to precisely analyse how Mercury’s gravity affected the trajectory of NASA’s MESSENGER spacecraft during multiple low-altitude orbits, researchers have been able to show the small planet must have a large, solid-iron inner core measuring some 2,000 kilometres (1,260 miles) across, almost as large as Earth’s. Including its molten metal outer layer, Me...

The Sky This Week from April 19 to 28

Friday, April 19Full Moon arrived at 7:12 a.m. EDT this morning, but it still looks completely illuminated tonight. It rises in the east about a half-hour after sunset and climbs well above the southeastern horizon by late evening. The Moon spends the evening in the northwestern corner of the constellation Libra the Scales.Saturday, April 20Venus pokes above the eastern horizon about an hour bef...

Blogs [ All Blogs ]

Astronomers Find Stars Streaming from Our Galaxy’s Biggest Cluster

Around the Milky Way are more than 150 globular clusters, ancient star cities with hundreds of thousands of closely packed denizens. Most such clusters can be found out in the galaxy’s nearly empty halo; it’s likely they formed before our galaxy did. But one of these is not like the others. A view of the iconic Omega Centauri globular cluster.ESO / INAF-VST / OmegaCAM; Acknowle...

Astronomers Find Second Galaxy with No Dark Matter

“Discovering a second galaxy with very little to no dark matter is just as exciting as the initial discovery of DF2,” Yale University’s Professor Pieter van Dokkum. “This means the chances of finding more of these galaxies are now higher than we previously thought. Since we have no good ideas for how these galaxies were formed, I hope these discoveries will encourage more...

A new neutron star merger is caught on X-ray camera

In October 2017, astronomers announced the first detection of gravitational waves from the merger of two neutron stars earlier that year. The event also rung in the era of multi-messenger astronomy, as more than 70 telescopes observed the event’s afterglow in optical light, X-rays, gamma rays, and more. Now, an X-ray signal dubbed XT2 from a galaxy 6.6 billion light-years away has revealed...