20175+1444 CHE 277

 
 
20h 17m 30.93s +14 43' 49.5" P.A. 345 sep 4 mag 11.50,11.70 Sp G0
 
 
Coord 2000
20175+1444
Discov num
CHE 277
Comp
Coord arcsec 2000
20 17 30.93 +14 43 49.5
Date first
1904
Date last
2015
Obs
9
Pa first
338
Pa last
345
P.A. Now (θ)
345°
Sep first
4.4
Sep last
4.0
Sep. Now (ρ)
4"
Mag pri
11.50
Mag sec
11.70
delta mag (ΔM)
0.2
Spectral class
G0 (yellow)
Pri motion ra
-003
Sec motion ra
Pri motion dec
-018
Sec motion dec
Notes
R (Red magnitudes)
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
345
Precise sep
4.01
Constellation
Delphinus
Tycho2
1085-00029-1
Gaia DR2
08634450560
HD
355416
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20175+1444 CHE 277 2003 5 343 4.1 9.87 9.95 D 201730.93+144349.5
20175+1444 CHE 277 2008 6 346 3.9 9.87 9.95 D 201730.93+144349.5
20175+1444 CHE 277 2010 8 345 3.9 11.50 11.70 G0 R 201730.93+144349.5
20175+1444 CHE 277 2015 9 345 4.0 11.50 11.70 G0 R 201730.93+144349.5

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