18545+2037 STF2415

 
 
18h 54m 32.84s +20 36' 55.1" P.A. 287 sep 1.9 mag 7.07,8.73 Sp A0IV
 
 
Coord 2000
18545+2037
Discov num
STF2415
Comp
Coord arcsec 2000
18 54 32.84 +20 36 55.1
Date first
1831
Date last
2013
Obs
73
Pa first
299
Pa last
287
P.A. Now (θ)
287°
Sep first
2.0
Sep last
1.9
Sep. Now (ρ)
1.9"
Mag pri
7.07
Mag sec
8.73
delta mag (ΔM)
1.66
Spectral class
A0IV (white)
Pri motion ra
+004
Sec motion ra
+004
Pri motion dec
-002
Sec motion dec
-002
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
287.2
Precise sep
1.874
Constellation
Hercules
Tycho2
1592-00227-1
HD
175427
last precise pa
287.2
last precise sep
1.874
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18545+2037 STF2415 2004 67 290 2.0 7.07 8.73 A0IV D 185432.84+203655.1
18545+2037 STF2415 2007 70 290 2.0 7.07 8.73 A0IV D 185432.84+203655.1
18545+2037 STF2415 2010 72 289 1.9 7.07 8.73 A0IV D 185432.84+203655.1
18545+2037 STF2415 2011 73 289 2.0 7.07 8.73 A0IV D 185432.84+203655.1
18545+2037 STF2415 2013 73 287 1.9 7.07 8.73 A0IV D 185432.84+203655.1

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WDS 18545+2037 STF2415 : NOTES
 
 
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 18545+2037 STF2415 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18545+2037 STF2415 : MEASURES
 
 
Records found: 1
Show date username difficulty sep sep_sigma pa pa_sigma delta_mag # notes
Show 12/06/21 northisup easy 2.00   293.00   1.50 1
 
 
WDS 18545+2037 STF2415 : Virtual Eyepiece
 
 

18545+2037  STF2415 A 18545+2037  STF2415 sep 1.9 P.A. 287 mag 7.07,8.73 Sp A0IV virtual eyepiece
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Radius:
 
 
WDS 18545+2037 STF2415 : Aladin DSS image @ 18h 54m 32.84s +20 36' 55.1"