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Current system
07345-2100
DON 188
Alp Gem


Nearby doubles
16' : 07344-2116
ARA1356

16' : 07354-2108
ARA 953

17' : 07354-2109
ARA 954

20' : 07330-2102
ARA 943

22' : 07331-2112
ARA 944

23' : 07334-2044
BRT1412

23' : 07351-2039
ARA 950

25' : 07332-2117
ARA1353

25' : 07354-2121
BRT1416

26' : 07353-2037
BRT1415

27' : 07358-2040
ARA 955

28' : 07328-2048
RUC 20

28' : 07362-2113
ARA 958

29' : 07363-2110
BRT1418

30' : 07331-2123
BRT 318

30' : 07365-2052
TDS4979

31' : 07365-2106
ARA 965

31' : 07340-2031
ARA 946

31' : 07342-2030
BRT1413

32' : 07362-2039
ARA 957

33' : 07344-2028
ARA 948

33' : 07362-2037
ARA 956AB

34' : 07364-2040
ARA 963

34' : 07359-2127
BRT1417

35' : 07363-2037
ARA 960AB

36' : 07363-2035
ARA 959



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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

07345-2100 DON 188 (Alp Gem)

 
 
07h 34m 28.09s -21° 00' 18.0" P.A. 311.00 sep 0.8 mag 10.26,10.32 Sp B9.5IV/V dist. 15.6 pc (50.89 l.y.)
 
 
Coord 2000 07345-2100 Discov num DON 188 Comp Coord arcsec 2000 07 34 28.09 -21 00 18.0
Date first 1932 Date last 1991 Obs 7
Pa first 308 Pa last 311.2 P.A. Now (θ) 311.2°
Sep first 0.7 Sep last 0.8 Sep. Now (ρ) 0.8"
Mag pri 10.26 Mag sec 10.32 delta mag (ΔM) 0.06 Spectral class B9.5IV/V (blue-white)
Pri motion ra -003 Sec motion ra -003
Pri motion dec +007 Sec motion dec +007
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name Alp Gem Var name YY Gem Constellation Puppis SAO 174021
HIP 36850 Tycho2 5991-02180-1 Gaia DR2 5620105890991236608 HD 60179
HR 2891 ADS 6175 BD BD+32 1581 Bayer Alpha Geminorum
Bayer name Alp Gem Flamsteed 66 Geminorum Flamsteed name 66 Gem Distance 15.6
Distance ly 50.89 Bayer greek α Gem
Bayer or Flamsteed indentifiers not always match the correct constellation because of procession and proper motion of the star. (Gem vs Pup)
 
 
WDS 07345-2100 DON 188 (Alp Gem) : NOTES
 
 
No records found.

 
 
DISCOVERER
 
 
discov author
DON Donner, H.F.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr dm_number notes coord_arcsec_2000
07345-2100 DON 188 1991 7 311 0.8 10.26 10.32 B9.5IV/V -20 2033 073428.09-210018.0

If you need more information about this double, apply for a data request form to the WDS.

 
 
WDS 07345-2100 DON 188 (Alp Gem) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 07345-2100 DON 188 (Alp Gem) : MEASURES
 
 
No records found.

 
 
WDS 07345-2100 (Alp Gem) : VIRTUAL EYEPIECE
 
 

07345-2100 DON 188A mag 10.26 Sp B9.5IV/V 07345-2100 DON 188B sep 0.8 P.A. 311.20 mag 10.32 virtual eyepiece
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Radius:
Components only
 
 
WDS 07345-2100 (Alp Gem) : ALADIN DSS IMAGE @ 07h 34m 28.09s -21° 00' 18.0"
 
 
 
 
WDS 07345-2100 DON 188 (Alp Gem) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

07345-2100 DON 188 distance=0' 07344-2116 ARA1356 distance=16' 07354-2108 ARA 953 distance=16' 07354-2109 ARA 954 distance=17' 07330-2102 ARA 943 distance=20' 07331-2112 ARA 944 distance=22' 07334-2044 BRT1412 distance=23' 07351-2039 ARA 950 distance=23' 07332-2117 ARA1353 distance=25' 07354-2121 BRT1416 distance=25' 07353-2037 BRT1415 distance=26' 07358-2040 ARA 955 distance=27' 07328-2048 RUC 20 distance=28' 07362-2113 ARA 958 distance=28' 07363-2110 BRT1418 distance=29' 07331-2123 BRT 318 distance=30' 07365-2052 TDS4979 distance=30' 07365-2106 ARA 965 distance=31' 07340-2031 ARA 946 distance=31' 07342-2030 BRT1413 distance=31' 07362-2039 ARA 957 distance=32' 07344-2028 ARA 948 distance=33' 07362-2037 ARA 956AB distance=33' 07362-2037 ARA 956BC distance=33' 07362-2037 ARA 956BD distance=33' 07362-2037 ARA 956DE distance=33' 07364-2040 ARA 963 distance=34' 07359-2127 BRT1417 distance=34' 07363-2037 ARA 960AB distance=35' 07363-2037 ARA 962AC distance=35' 07363-2035 ARA 959 distance=36' 07319-2056 HJ 3973 distance=37' 07368-2042 ARA 967 distance=38' 07351-2021 BRT 321 distance=40' 07315-2110 ARA 940 distance=43' 07319-2126 ARA1351 distance=44' 07341-2144 ARA1354 distance=44' 07348-2016 ARA 949 distance=45' 07372-2123 ARA1363 distance=46' 07365-2024 ARA 964 distance=46' 07312-2110 BRT 317 distance=46' 07317-2036 ARA 941 distance=46' 07369-2025 ARA 968 distance=49' 07367-2021 BRT 322 distance=50' 07349-2010 BRT 320 distance=51' 07333-2013 ARA 608 distance=51' 07377-2125 ARA1366 distance=53' 07350-2152 ARA1359 distance=53' 07334-2009 ARA 609 distance=54' 07333-2009 BRT 319 distance=54' 07382-2114 ARA 971 distance=55' grafico limitrofi
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
Show name coord_2000 discov# comp pa sep dist(')
Show 07345-2100 DON 188 311 0.8 0
Show 07344-2116 ARA1356 340 9.2 16
Show 07354-2108 ARA 953 222 7.3 16
Show 07354-2109 ARA 954 72 14.2 17
Show 07330-2102 ARA 943 117 14.8 20
Show 07331-2112 ARA 944 193 12.8 22
Show 07334-2044 BRT1412 325 4.0 23
Show 07351-2039 ARA 950 120 5.4 23
Show 07332-2117 ARA1353 323 12.1 25
Show 07354-2121 BRT1416 34 4.4 25
Show 07353-2037 BRT1415 194 3.6 26
Show 07358-2040 ARA 955 109 13.5 27
Show 07328-2048 RUC 20 4 7.8 28
Show 07362-2113 ARA 958 272 8.8 28
Show 07363-2110 BRT1418 241 5.6 29
Show 07331-2123 BRT 318 124 3.3 30
Show 07365-2052 TDS4979 78 0.7 30
Show 07365-2106 ARA 965 336 10.7 31
Show 07340-2031 ARA 946 341 10.5 31
Show 07342-2030 BRT1413 210 3.2 31
Show 07362-2039 ARA 957 0 7.7 32
Show 07344-2028 ARA 948 212 9.1 33
Show 07362-2037 ARA 956 AB 130 7.3 33
Show 07362-2037 ARA 956 BC 280 12.8 33
Show 07362-2037 ARA 956 BD 93 11.9 33
Show 07362-2037 ARA 956 DE 14 4.1 33
Show 07364-2040 ARA 963 50 7.1 34
Show 07359-2127 BRT1417 41 5.6 34
Show 07363-2037 ARA 960 AB 71 11.5 35
Show 07363-2037 ARA 962 AC 357 17.5 35
Show 07363-2035 ARA 959 50 13.3 36
Show 07319-2056 HJ 3973 38 9.1 37
Show 07368-2042 ARA 967 209 8.1 38
Show 07351-2021 BRT 321 91 5.3 40
Show 07315-2110 ARA 940 349 10.9 43
Show 07319-2126 ARA1351 154 13.9 44
Show 07341-2144 ARA1354 4 8.5 44
Show 07348-2016 ARA 949 347 10.6 45
Show 07372-2123 ARA1363 55 14.3 46
Show 07365-2024 ARA 964 91 12.7 46
Show 07312-2110 BRT 317 139 4.5 46
Show 07317-2036 ARA 941 327 14.7 46
Show 07369-2025 ARA 968 147 13.0 49
Show 07367-2021 BRT 322 106 3.5 50
Show 07349-2010 BRT 320 66 4.5 51
Show 07333-2013 ARA 608 315 14.1 51
Show 07377-2125 ARA1366 180 8.2 53
Show 07350-2152 ARA1359 47 8.8 53
Show 07334-2009 ARA 609 309 5.6 54
Show 07333-2009 BRT 319 2 4.2 54
Show 07382-2114 ARA 971 194 13.3 55

 
 
WDS 07345-2100 : COMPONENTS
 
 
  A
B pa=311.2°
sep=0.80"
 
 
07345-2100 A
 
 
Name Alp Gem Coord arcsec 2000 073428.09-210018.0 Mag 10.26 Spectral class B9.5IV/V (blue-white)
PmRA -3.00 PmDE 7.0 SAO 174021 Tycho2 5991-02180-1
HD 60600 DM BD-20 2033
Tycho2
Tycho2 5991-02180-1 Pflag P RAmdeg 113.61704508 DEmdeg -21.00500266
PmRA -3.2 PmDE 7.2 E RAmdeg 21 E DEmdeg 24
E pmRA 2.7 E pmDE 2.7 EpRAm 1990.52 EpDEm 1990.04
Num 5 Q RAmdeg 1.4 Q DEmdeg 1.0 Q pmRA 1.4
Q pmDE 1.0 BTmag 10.170 E BTmag 0.028 VTmag 10.260
E VTmag 0.038 Prox 8 TYC T HIP
CCDM RAdeg 113.61712167 DEdeg -21.00507528 EpRA 1990 1.64
EpDE 1990 1.53 E RAdeg 18.3 E DEdeg 20.5 Posflg D
Corr 0.1
SAO
SAO 174021 DelFlag RA1950 PmRA1950 -0.0001
DE1950 PmDE1950 -0.009 Vmag 8.8 SpType A0
Double code Source 23 CatNum 3072 DM BD-20 2033
DMcomp BDsup HD 60600 M HD 0
GC RA1950rad 1.97352046 DE1950rad -0.36468157 PmRA2000 0.0003
PmDE2000 -0.006
CCDM
Ccdm 07345-2100 RComp Comp A Note1
Note2 Discov num DRAs -1.88 DDEs -18.4
R dRAs 10 Year Theta Rho
Obs 2 Vmag 9.7 Sp A0 PmNote *
PmRA -1 PmDE -9 Dm number -20 2033 Cat1 BD
Name2 174021 Cat2 SAO HD 60600 M HD
ADS BDS M ADS BDS N IDS IDS 07301S2047A
HIC
 
 
07345-2100 B
 
 
Coord arcsec 2000 073428.05-210017.5 Mag 10.32 PmRA -3.00 PmDE 7.0
Tycho2 5991-02180-2 HD 60179 Flamsteed 66 Geminorum Flamsteed name 66 Gem
Delta magnitude 0.06 Coordinate calculated yes
Tycho2
Tycho2 5991-02180-2 Pflag P RAmdeg 113.61704508 DEmdeg -21.00500266
PmRA -3.2 PmDE 7.2 E RAmdeg 21 E DEmdeg 24
E pmRA 2.7 E pmDE 2.7 EpRAm 1990.52 EpDEm 1990.04
Num 5 Q RAmdeg 1.4 Q DEmdeg 1.0 Q pmRA 1.4
Q pmDE 1.0 BTmag 10.496 E BTmag 0.035 VTmag 10.318
E VTmag 0.040 Prox 8 TYC T HIP
CCDM RAdeg 113.61694250 DEdeg -21.00492889 EpRA 1990 1.65
EpDE 1990 1.53 E RAdeg 22.3 E DEdeg 25.1 Posflg D
Corr 0.1
CCDM
Ccdm 07345-2100 RComp Comp B Note1
Note2 Discov num DON 188 DRAs DDEs
R dRAs Year 1932 Theta 308 Rho 0.8
Obs 4 Vmag 10.0 Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS IDS 07301S2047B
HIC