12316-1104 STF1649

 
 
12h 31m 36.46s -11 04' 20.2" P.A. 194 sep 15.7 mag 7.97,8.43 Sp A7 dist. 87.64 pc (285.88 l.y.)
 
 
Coord 2000
12316-1104
Discov num
STF1649
Comp
Coord arcsec 2000
12 31 36.46 -11 04 20.2
Date first
1827
Date last
2018
Obs
60
Pa first
200
Pa last
194
P.A. Now (θ)
194°
Sep first
14.0
Sep last
15.7
Sep. Now (ρ)
15.7"
Mag pri
7.97
Mag sec
8.43
delta mag (ΔM)
0.46
Spectral class
A7 (white)
Pri motion ra
-054
Sec motion ra
-047
Pri motion dec
+001
Sec motion dec
-007
Notes
N (See Notes)
rPM=0.197 (< 0.3, Physical double)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
194
Precise sep
15.7
Constellation
Virgo
SAO
157339
HIP
61127
Tycho2
5530-02060-1
Gaia DR2
85619050624
HD
109005
BD
BD-10 3487
Distance
87.64
Distance ly
285.88
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
12316-1104 STF1649 2005 44 194 15.8 7.97 8.43 A7 N D 123136.46-110420.2
12316-1104 STF1649 2008 48 194 15.5 7.97 8.43 A7 N D 123136.46-110420.2
12316-1104 STF1649 2009 49 196 15.3 7.97 8.43 A7 N D 123136.46-110420.2
12316-1104 STF1649 2011 51 194 15.8 7.97 8.43 A7 N D 123136.46-110420.2
12316-1104 STF1649 2016 54 194 15.7 7.97 8.43 A7 N 123136.46-110420.2
12316-1104 STF1649 2018 60 194 15.7 7.97 8.43 A7 N 123136.46-110420.2

If you need more information about this double, apply for a data request form to the WDS.
 
 
WDS 12316-1104 STF1649 : NOTES
 
 
discov_num notes refcode
STF1649 B is BD-10@3486. Mt. Wilson spectral types A3, F2.
 
 
REFERENCES
 
 
No records found.

 
 
DISCOVERER
 
 
discov author
STF (F. Struve DD - Appendix list #1)
STF (F. Struve DD - Appendix list #2)
STF Struve, F.G.W.

 
 
WDS 12316-1104 STF1649 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 12316-1104 STF1649 : MEASURES
 
 
No records found.

 
 
WDS 12316-1104 STF1649 : Virtual Eyepiece
 
 

12316-1104  STF1649 A 12316-1104  STF1649 sep 15.7 P.A. 194 mag 7.97,8.43 Sp A7 virtual eyepiece
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Radius:
 
 
WDS 12316-1104 STF1649 : Aladin DSS image @ 12h 31m 36.46s -11 04' 20.2"