| 3109000 |
|
ASTROTECH 1.25" EYEPIECE KIT (40/15/9/6MM) W/2X BARLOW, 5 FILTERS W/CASE |
| 3201000 |
|
Astrotech 2X 1.25" 2-element Shorty Barlow |
| 3201100 |
|
Astrotech 2X 2" ED 3-element Barlow w/1.25" Adapter |
| 3201050 |
|
Astrotech 5X 1.25" ED 3-element Barlow |
| 3105130 |
|
ASTROTECH AF70 1.25" 70 DEGREE EYEPIECE--13MM |
| 3105170 |
|
ASTROTECH AF70 1.25" 70 DEGREE EYEPIECE--17MM |
| 3105220 |
|
ASTROTECH AF70 1.25" 70 DEGREE EYEPIECE--22MM |
| 3105035 |
|
ASTROTECH AF70 1.25" 70 DEGREE EYEPIECE--3.5MM |
| 3105050 |
|
ASTROTECH AF70 1.25" 70 DEGREE EYEPIECE--5MM |
| 3105080 |
|
ASTROTECH AF70 1.25" 70 DEGREE EYEPIECE--8MM |
| 3501200 |
|
ASTROTECH BROADBAND FILTER--1.25" |
| 3100125 |
|
ASTROTECH HIGH-GRADE PLOSSL 1.25" 55 DEGREE EYEPIECE-12.5MM |
| 3100170 |
|
ASTROTECH HIGH-GRADE PLOSSL 1.25" 55 DEGREE EYEPIECE-17MM |
| 3100200 |
|
ASTROTECH HIGH-GRADE PLOSSL 1.25" 55 DEGREE EYEPIECE-20MM |
| 3100040 |
|
ASTROTECH HIGH-GRADE PLOSSL 1.25" 55 DEGREE EYEPIECE-4MM |
| 3100060 |
|
ASTROTECH HIGH-GRADE PLOSSL 1.25" 55 DEGREE EYEPIECE-6MM |
| 3501100 |
|
ASTROTECH O-III LINE FILTER--1.25" |
| 3101120 |
|
ASTROTECH PARADIGM ED 1.25" 60 DEGREE EYEPIECE-12MM |
| 3101150 |
|
ASTROTECH PARADIGM ED 1.25" 60 DEGREE EYEPIECE-15MM |
| 3101180 |
|
ASTROTECH PARADIGM ED 1.25" 60 DEGREE EYEPIECE-18MM |
| 3101250 |
|
ASTROTECH PARADIGM ED 1.25" 60 DEGREE EYEPIECE-25MM |
| 3101050 |
|
ASTROTECH PARADIGM ED 1.25" 60 DEGREE EYEPIECE-5MM |
| 3101080 |
|
ASTROTECH PARADIGM ED 1.25" 60 DEGREE EYEPIECE-8MM |
| 3501000 |
|
ASTROTECH UHC FILTER--NARROWBAND--1.25" |
| 1501075 |
|
Baader 2" Variable Polarizing filter (Double) #2408344 |
| 1101010 |
|
BAADER CLASSIC ORTHO-10.0MM #2954110 W/WINGED EYECUP |
| 1101018 |
|
BAADER CLASSIC ORTHO-18.0MM #2954118 W/WINGED EYECUP |
| 1101006 |
|
BAADER CLASSIC ORTHO-6.0MM #2954106 W/WINGED EYECUP |
| 1101032 |
|
BAADER CLASSIC PLOSSL-32MM #2954132 W/WINGED EYECUP, AUX. SPACER TUBE |
| 1501000 |
|
BAADER CONTRAST BOOSTER FILTER-1.25" #2458360 |
| 1501005 |
|
BAADER CONTRAST BOOSTER FILTER-2" #2458365 |
| 1501010 |
|
BAADER FRINGE-KILLER FILTER-1.25" #2458370 |
| 1501015 |
|
BAADER FRINGE-KILLER FILTER-2" #2458375 |
| 1401014 |
|
BAADER HYPERION 14MM FINE-TUNING RING (48MM TO 48MM) #2958214 |
| 1401028 |
|
BAADER HYPERION 28MM FINE-TUNING RING (48MM TO 48MM) #2958228 |
| 1102031 |
|
BAADER HYPERION ASPHERIC 2" EYEPIECE-31MM #2454631 |
| 1102036 |
|
BAADER HYPERION ASPHERIC EYEPIECE-36MM #2454636 |
| 1102010 |
|
BAADER HYPERION EYEPIECE-10MM #2454610 |
| 1102013 |
|
BAADER HYPERION EYEPIECE-13MM #2454613 |
| 1102017 |
|
BAADER HYPERION EYEPIECE-17MM #2454617 |
| 1102021 |
|
BAADER HYPERION EYEPIECE-21MM #2454621 |
| 1102024 |
|
BAADER HYPERION EYEPIECE-24MM #2454624 |
| 1102005 |
|
BAADER HYPERION EYEPIECE-5MM #2454605 |
| 1102008 |
|
BAADER HYPERION EYEPIECE-8MM #2454608 |
| 1102824 |
|
BAADER HYPERION MKIII 8-24 CLICK-STOP ZOOM EYEPIECE #2454824--2" OR 1.25" |
| 1201020 |
|
BAADER HYPERION ZOOM 2.25X BARLOW #2956180 (ALSO WORKS ON 1.25" EYEPIECES) |
| 1501020 |
|
BAADER MOON & SKYGLOW FILTER-1.25" #2458305 |
| 1501025 |
|
BAADER MOON & SKYGLOW FILTER-2" #2458334 |
| 1501030 |
|
BAADER O-III NEBULA FILTER-1.25" #2458395 |
| 1501035 |
|
BAADER O-III NEBULA FILTER-2" #2458396 |
| 1402000 |
|
BAADER PLANETARIUM Q EYEPIECE TURRET #2957010 |
| 1501050 |
|
Baader Planetarium Semi-Apo filter 1.25" #2458398 |
| 1501055 |
|
Baader Planetarium Semi-Apo filter 2" #2458399 |
| 1201000 |
|
BAADER Q-BARLOW #2956185 2.25X OR 1.3X |
| 1501040 |
|
BAADER UHC-S NEBULA FILTER-1.25" #2458275 |
| 1501045 |
|
BAADER UHC-S NEBULA FILTER-2" #2458276 |
| 1201010 |
|
BAADER VIP 2X BARLOW-2"/1.25" #2406101 |
| Five-hundred-Best-DSOs |
|
ESSAY: 500 Best DSO objects |
| Nebula-Filters-Explained |
|
ESSAY: Choosing a Nebula Filter |
| CONTRAST-IN-EYEPIECES |
|
ESSAY: CONTRAST IN EYEPIECES |
| Visibility-Index |
|
ESSAY: DSO Visibility Index |
| EP-Parameters |
|
ESSAY: Eyepiece Parameters and Aberrations |
| Laptop-Golden-Rules |
|
ESSAY: Laptop Golden Rules |
| Laser-Collimation |
|
ESSAY: Laser Collimation |
| Newt.Collimation |
|
ESSAY: Newtonian Collimation v.4 |
| ObsLogTemplate |
|
ESSAY: Observing Log Template |
| Seeing-and-Transparency |
|
ESSAY: Seeing and Transparency |
| EP-Selection-1X-2X-3X |
|
ESSAY: The 1X / 2X / 3X Magnification Protocol in Eyepiece Choice |
| THE-THREE-Cs |
|
ESSAY: THE THREE "C"s OF OBSERVING |
| 2201000 |
|
Explore Scientific 4-element 2X 1.25" focal extender |
| 2201020 |
|
Explore Scientific 4-element 2X 2" focal extender |
| 2201010 |
|
Explore Scientific 4-element 3X 1.25" focal extender |
| 2201015 |
|
Explore Scientific 4-element 5X 1.25" focal extender |
| 2101055 |
|
EXPLORE SCIENTIFIC 5.5MM 100° N2 PURGED WP EYEPIECE |
| 2104400 |
|
EXPLORE SCIENTIFIC 6 ELEMENT 68° SERIES 40MM WATERPROOF N2 EYEPIECE-2.0" |
| 2104160 |
|
EXPLORE SCIENTIFIC 6-ELEMENT 68° SERIES 16MM WATERPROOF N2 EYEPIECE-1.25" |
| 2104200 |
|
EXPLORE SCIENTIFIC 6-ELEMENT 68° SERIES 20MM WATERPROOF N2 EYEPIECE-1.25" |
| 2104240 |
|
EXPLORE SCIENTIFIC 6-ELEMENT 68° SERIES 24MM WATERPROOF N2 EYEPIECE-1.25" |
| 2104280 |
|
EXPLORE SCIENTIFIC 6-ELEMENT 68° SERIES 28MM WATERPROOF N2 EYEPIECE-2.0" |
| 2104340 |
|
EXPLORE SCIENTIFIC 6-ELEMENT 68° SERIES 34MM WATERPROOF N2 EYEPIECE-2.0" |
| 2103180 |
|
EXPLORE SCIENTIFIC 6-ELEMENT 82° SERIES 18MM WATERPROOF N2 EYEPIECE--2" |
| 2103240 |
|
EXPLORE SCIENTIFIC 6-ELEMENT 82° SERIES 24MM WATERPROOF N2 EYEPIECE--2" |
| 2103300 |
|
EXPLORE SCIENTIFIC 6-ELEMENT 82° SERIES 30MM WATERPROOF N2 EYEPIECE--2" |
| 2103110 |
|
EXPLORE SCIENTIFIC 7-ELEMENT 82° SERIES 11MM WATERPROOF N2 EYEPIECE--1.25" |
| 2103140 |
|
EXPLORE SCIENTIFIC 7-ELEMENT 82° SERIES 14MM WATERPROOF N2 EYEPIECE--1.25" |
| 2103047 |
|
EXPLORE SCIENTIFIC 7-ELEMENT 82° SERIES 4.7MM WATERPROOF N2 EYEPIECE--1.25" |
| 2103067 |
|
EXPLORE SCIENTIFIC 7-ELEMENT 82° SERIES 6.7MM WATERPROOF N2 EYEPIECE--1.25" |
| 2103088 |
|
EXPLORE SCIENTIFIC 7-ELEMENT 82° SERIES 8.8MM WATERPROOF N2 EYEPIECE--1.25" |
| 2101250 |
|
EXPLORE SCIENTIFIC 8-ELEMENT 25MM 100° N2 PURGED WP EYEPIECE-2" |
| 2101140 |
|
EXPLORE SCIENTIFIC 9-ELEMENT 14MM 100° 9-ELEMENT N2 PURGED WP EYEPIECE-2" |
| 2101200 |
|
EXPLORE SCIENTIFIC 9-ELEMENT 20MM 100° 9-ELEMENT N2 PURGED WP EYEPIECE-2" |
| 2101090 |
|
EXPLORE SCIENTIFIC 9-ELEMENT 9MM 100° 9-ELEMENT N2 PURGED WP EYEPIECE-2" |
| 2102090 |
|
EXPLORE SCIENTIFIC 9MM 120° ARGON-PURGED WATERPROOF EYEPIECE-2", EMD COATINGS |
| 6403020 |
|
Howie Glatter Laser 1.25" Blug (Barlow+Plug) |
| 6403060 |
|
Howie Glatter Laser 1.25" Side Cut-out Tube |
| 6403040 |
|
Howie Glatter Laser 1.25" TuBlug (Tube+Barlow+Plug) |
| 6403000 |
|
Howie Glatter Laser 2" Blug (Barlow+Plug) |
| 6403010 |
|
Howie Glatter Laser 2" Flug (Barlow+Plug for FeatherTouch) |
| 6403050 |
|
Howie Glatter Laser 2" Side Cut-out Tube |
| 6403030 |
|
Howie Glatter Laser 2" TuBlug (Tube+Barlow+Plug) |
| 6402000 |
|
Howie Glatter Laser Collimator Barlow Attachment |
| 6401010 |
|
Howie Glatter Laser Collimator--1.25" 635nm |
| 6401000 |
|
Howie Glatter Laser Collimator--1.25" 650nm |
| 6401030 |
|
Howie Glatter Laser Collimator--2" 635nm |
| 6401020 |
|
Howie Glatter Laser Collimator--2" 650nm |
| 6401050 |
|
Howie Glatter Laser Collimator--2"/1.25" 635nm |
| 6401040 |
|
Howie Glatter Laser Collimator--2"/1.25" 650nm |
| 6402020 |
|
Howie Glatter Laser Concentric Circle Holographic Attachment |
| 6402010 |
|
Howie Glatter Laser Square Grid Holographic Attachment |
| 6404000 |
|
Howie Glatter Parallizer 2" to 1.25" adapter |
| 5502010 |
|
LUMICON #11 YELLOW-GREEN FILTER 1.25" |
| 5502210 |
|
LUMICON #11 YELLOW-GREEN FILTER 2" |
| 5502020 |
|
LUMICON #12 YELLOW FILTER 1.25" |
| 5502220 |
|
LUMICON #12 YELLOW FILTER 2" |
| 5502030 |
|
LUMICON #15 YELLOW FILTER 1.25" |
| 5502230 |
|
LUMICON #15 YELLOW FILTER 2" |
| 5502040 |
|
LUMICON #21 ORANGE FILTER 1.25" |
| 5502240 |
|
LUMICON #21 ORANGE FILTER 2" |
| 5502050 |
|
LUMICON #23A RED-ORANGE FILTER 1.25" |
| 5502250 |
|
LUMICON #23A RED-ORANGE FILTER 2" |
| 5502060 |
|
LUMICON #25 RED FILTER 1.25" |
| 5502260 |
|
LUMICON #25 RED FILTER 2" |
| 5502070 |
|
LUMICON #29 RED FILTER 1.25" |
| 5502270 |
|
LUMICON #29 RED FILTER 2" |
| 5502100 |
|
LUMICON #38A DARK BLUE FILTER 1.25" |
| 5502300 |
|
LUMICON #38A DARK BLUE FILTER 2" |
| 5502110 |
|
LUMICON #47 VIOLET FILTER 1.25" |
| 5502310 |
|
LUMICON #47 VIOLET FILTER 2" |
| 5502120 |
|
LUMICON #56 GREEN FILTER 1.25" |
| 5502320 |
|
LUMICON #56 GREEN FILTER 2" |
| 5502130 |
|
LUMICON #58 DARK GREEN FILTER 1.25" |
| 5502330 |
|
LUMICON #58 DARK GREEN FILTER 2" |
| 5502000 |
|
LUMICON #8 LIGHT YELLOW FILTER 1.25" |
| 5502200 |
|
LUMICON #8 YELLOW FILTER 2" |
| 5502090 |
|
LUMICON #80A BLUE FILTER 1.25" |
| 5502290 |
|
LUMICON #80A BLUE FILTER 2" |
| 5502080 |
|
LUMICON #82A LIGHT BLUE FILTER 1.25" |
| 5502280 |
|
LUMICON #82A LIGHT BLUE FILTER 2" |
| 5501000 |
|
Lumicon Deep Sky Broadband Filter 1.25" |
| 5501010 |
|
Lumicon Deep Sky Broadband Filter 2" |
| 5501060 |
|
Lumicon H-Beta Line Filter-1.25" |
| 5501070 |
|
Lumicon H-Beta Line Filter-2" |
| 5502400 |
|
LUMICON NEUTRAL DENSITY ND13 FILTER-1.25" |
| 5502450 |
|
LUMICON NEUTRAL DENSITY ND13 FILTER-2" |
| 5502410 |
|
LUMICON NEUTRAL DENSITY ND25 FILTER-1.25" |
| 5502460 |
|
LUMICON NEUTRAL DENSITY ND25 FILTER-2" |
| 5502420 |
|
LUMICON NEUTRAL DENSITY ND50 FILTER-1.25" |
| 5502470 |
|
LUMICON NEUTRAL DENSITY ND50 FILTER-2" |
| 5501040 |
|
Lumicon O-III Line Filter-1.25" |
| 5501050 |
|
Lumicon O-III Line Filter-2" |
| 5502430 |
|
LUMICON POLARIZING FILTER-SINGLE 1.25" |
| 5502480 |
|
LUMICON POLARIZING FILTER-SINGLE 2" |
| 5501020 |
|
Lumicon UHC Narrowband Filter 1.25" |
| 5501030 |
|
Lumicon UHC Narrowband Filter 2" |
| 5502440 |
|
LUMICON VARIABLE POLARIZING FILTER-DOUBLE 1.25" |
| 5502490 |
|
LUMICON VARIABLE POLARIZING FILTER-DOUBLE 2" |
| 4400210 |
|
TELEVUE STAR BEAM RED DOT FINDER-SCT BASE SFC-2009 |
| 4400200 |
|
TELEVUE STAR BEAM RED DOT FINDER-TELEVUE BASE SFT-2003 |
| 4302010 |
|
TELEVUE TV-85 REFRACTOR OTA w/2" Diagonal, Case--BRASS |
| 4302000 |
|
TELEVUE TV-85 REFRACTOR OTA w/2" diagonal, case--IVORY |
| 4400150 |
|
TELEVUE 2" BARREL EXTENDER-BLACK, 1.2" LONG |
| 4400140 |
|
TeleVue 2" to 1.25" In-Travel Adapter AIT-2125 |
| 4500040 |
|
TELEVUE BANDMATE MARS-A FILTER, 1.25" |
| 4500050 |
|
TELEVUE BANDMATE MARS-B FILTER, 1.25" |
| 4500030 |
|
TELEVUE BANDMATE NEBUSTAR NARROWBAND FILTER, 1.25" |
| 4500020 |
|
TELEVUE BANDMATE NEBUSTAR NARROWBAND FILTER, 2" |
| 4500010 |
|
TELEVUE BANDMATE O-III FILTER, 1.25" |
| 4500000 |
|
TELEVUE BANDMATE O-III FILTER, 2" |
| 4500100 |
|
TELEVUE BANDMATE PLANETARY FILTER, 1.25" |
| 4200050 |
|
TELEVUE BARLOW, 1.25", 2X |
| 4200060 |
|
TELEVUE BARLOW, 1.25", 3X |
| 4200040 |
|
TELEVUE BIG BARLOW, 2", 2X |
| 4100160 |
|
TELEVUE DELOS, 1.25", ?-ELEMENT, 10MM, 72 DEGREES |
| 4100150 |
|
TELEVUE DELOS, 1.25", ?-ELEMENT, 12MM, 72 DEGREES |
| 4100140 |
|
TELEVUE DELOS, 1.25", ?-ELEMENT, 14MM, 72 DEGREES |
| 4100130 |
|
TELEVUE DELOS, 1.25", ?-ELEMENT, 17.3MM, 72 DEGREES |
| 4100200 |
|
TELEVUE DELOS, 1.25", ?-ELEMENT, 3.5MM, 72 DEGREES |
| 4100190 |
|
TELEVUE DELOS, 1.25", ?-ELEMENT, 4.5MM, 72 DEGREES |
| 4100180 |
|
TELEVUE DELOS, 1.25", ?-ELEMENT, 6MM, 72 DEGREES |
| 4100170 |
|
TELEVUE DELOS, 1.25", ?-ELEMENT, 8MM, 72 DEGREES |
| 4400120 |
|
TELEVUE EQUALIZER HI-HAT 2" TO 1.25" ADAPTER-BRASS |
| 4100420 |
|
TELEVUE ETHOS SX, 2"/1.25", 9-ELEMENT, 3.7MM, 110 DEG. |
| 4100410 |
|
TELEVUE ETHOS SX, 2"/1.25", 9-ELEMENT, 4.7MM, 110 DEG. |
| 4100360 |
|
TELEVUE ETHOS, 2", 9-ELEMENT, 17MM, 100 DEGREES |
| 4100350 |
|
TELEVUE ETHOS, 2", 9-ELEMENT, 21MM, 100 DEGREES |
| 4100380 |
|
TELEVUE ETHOS, 2"/1.25", 9-ELEMENT, 10MM, 100 DEGREES |
| 4100370 |
|
TELEVUE ETHOS, 2"/1.25", 9-ELEMENT, 13MM, 100 DEGREES |
| 4100400 |
|
TELEVUE ETHOS, 2"/1.25", 9-ELEMENT, 6MM, 100 DEGREES |
| 4100390 |
|
TELEVUE ETHOS, 2"/1.25", 9-ELEMENT, 8MM, 100 DEGREES |
| 4400130 |
|
TELEVUE FLAT TOP 2" TO 1.25" ADAPTER-BLACK |
| 4400100 |
|
TELEVUE HI-HAT 2" TO 1.25" ADAPTER-POLISHED BLACK |
| 4400110 |
|
TELEVUE HI-HAT 2" TO 1.25" ADAPTER-SATIN BLACK |
| 4100220 |
|
TELEVUE NAGLER TYPE 4, 2", 7-ELEMENT, 17MM, 82 DEGREES |
| 4100210 |
|
TELEVUE NAGLER TYPE 4, 2", 7-ELEMENT, 22MM, 82 DEGREES |
| 4100230 |
|
TELEVUE NAGLER TYPE 4, 2"/1.25", 6-ELEMENT, 12MM, 82 DEGREES |
| 4100270 |
|
TELEVUE NAGLER TYPE 5, 1.25", 6-ELEMENT, 16MM, 82 DEGREES |
| 4100260 |
|
TELEVUE NAGLER TYPE 5, 2", 6-ELEMENT, 20MM, 82 DEGREES |
| 4100250 |
|
TELEVUE NAGLER TYPE 5, 2", 6-ELEMENT, 26MM, 82 DEGREES |
| 4100240 |
|
TELEVUE NAGLER TYPE 5, 2", 6-ELEMENT, 31MM, 82 DEGREES |
| 4100290 |
|
TELEVUE NAGLER TYPE 6, 1.25", 7-ELEMENT, 11MM, 82 DEGREES |
