iOptron GEM28 User Manual

Double/Multi Stars
No. HC Item Constellation Name HIP WDS SAO
1 Rigel Kentaurus A Alpha Centauri Centaurus 71683 14396-6050 252838
2 Rigel Beta Orionis Orion 24436 05145-0812 131907
3 Gacrux Gamma Crucis Crux 61084 12312-5707 240019
4 Sargas Theta Scorpii Scorpius 86228 17373-4300 228201
5 Castor A Alpha Geminorum Gemini 36850 07346+3153 60198
6 Mizar Zeta Ursae Majoris Ursa Major 65378 13239+5456 28737
7 Almach Gamma Andromedae Andromeda 9640 02039+4220 37735
8 Algieba Gamma Leonis Leo 50583 10200+1950 81298
9 Aludra Eta Canis Majoris Canis Major 35904 07241-2918 173651
10 Iritjinga (Cen) Gamma Centauri Centaurus Muhlifain 61932 12415-4858 223603
11 Zubenelgenubi Alpha Librae Libra 72603 14509-1603 158836
12 Alcyone Eta Tauri Taurus 17702 03475+2406 76199
13 Cor Caroli
Alpha Canum Venaticorum
Canes Venatici 63125 12560+3819 63257
14 Acamar Theta Eridani Eridanus 13847 02583-4018 216113
15 Adhafera Zeta Leonis Leo 50335 10167+2325 81265
16 Rasalgethi Alpha Herculis Hercules 84345 17146+1423 102680
17 Meissa Lambda Orionis Orion 26207 05351+0956 112921
18 Graffias Beta1 Scorpii Scorpius 78820 16054-1948 159682
19 Alya Theta Serpentis Serpens 92946 18562+0412 124068
20 HIP 48002 Upsilon Carinae Carina Vathorz Prior 09471-6504 250695
21 HIP 95947 Beta1 Cygni Cygnus Albireo 19307+2758 87301
22 HIP 20894 Theta2 Tauri Taurus 04287+1552 93957
23 HIP 74395 Zeta Lupi Lupus 15123-5206 242304
24 HIP 27072 Gamma Leporis Lupus 05445-2227 170759
25 HIP 26549 Sigma Orionis Orion 05387-0236 132406
26 HIP 85667 HD 158614 Ophiuchus 17304-0104 141702
27 HIP 74376 Kappa1 Lupi Lupus 15119-4844 225525
28 HIP 34481 Gamma2 Volantis Carina 07087-7030 256374
29 HIP 53253 u Carinae Carina 10535-5851 238574
30 HIP 99675 Omicron1 Cygni Cygnus 31 Cyg 20136+4644 49337
31 HIP 63003 Mu1 Crucis Crux 12546-5711 240366
32 HIP 43103 Iota Cancri Cancer 48 Cnc 08467+2846 80416
33 HIP 110991 Delta Cephei Cepheus 27 Cep 22292+5825 34508
34 HIP 20635 Kappa1 Tauri Taurus 65 Tau 04254+2218 76601
35 HIP 88601 70 Ophiuchi Orion 18055+0230 123107
36 HIP 2484 Beta1 Tucanae Horologium 00315-6257 248201
37 HIP 91971 Zeta1 Lyrae Cygnus 6 Lyr 18448+3736 67321
38 HIP 79374 Nu Scorpii Scorpius Jabbah 16120-1928 159764
39 HIP 102532 Gamma2 Delphini Pegasus 12 Del 20467+1607 106476
40 HIP 52154 x Velorum Vela 10393-5536 238309
41 HIP 37229 HD 61555 Canis Major 07388-2648 174198
42 HIP 30419 Epsilon Monocerotis Orion 8 Mon 06238+0436 113810
43 HIP 108917 Xi Cephei Cepheus. Al kurhah 22038+6438 19827
44 HIP 53417 54 Leonis Leo 10556+2445 81584
45 HIP 65271 J Centauri Centaurus 13226-6059 252284
46 HIP 67669 3 Centauri Centaurus 13518-3300 204916
47 HIP 105319 Theta Indi Indus 21199-5327 246965
48 HIP 80582 Epsilon Normae Norma 16272-4733 226773
49 HIP 8832 Gamma Arietis Aries 01535+1918 92680
50 HIP 69483 Kappa Boötis Boötes Asellus Tertius 14135+5147 29045
51 HIP 92946 Theta Serpentis Serpens 18562+0412 124068
52 HIP 86614 Psi1 Draconis Draco 31 Draconis 17419+7209 8890

iOptron GEM28 Specifications

General

Payload Capacity	28 lbs (12.7 kg)
Mount Weight	10.4 lbs (4.7 kg)
RA Worm Gear Material	Brass
DEC Worm Gear Material	Brass
Tracking Rate	Sidereal, Lunar, Solar
Autoguiding Port	Yes
Communication Port	USB
Tracking Accuracy	± 5 arcsec
Weight	10.4 lbs (4.7 kg)
Mount Type	Equatorial
RA Worm Wheel	180 teeth
DEC Worm Wheel	180 teeth
Motor Drive	Stepper motor
Power Requirement	12V DC
GPS	Built-in
Polar Scope	Yes, included
Counterweight Shaft	Ø20 mm
Worm Gear Period	600 seconds