20179+1508 A  1669

 
 
20h 17m 52.59s +15 08' 12.4" P.A. 247 sep 3.1 mag 8.85,11.40 Sp F8
 
 
Coord 2000
20179+1508
Discov num
A  1669
Comp
Coord arcsec 2000
20 17 52.59 +15 08 12.4
Date first
1907
Date last
2016
Obs
8
Pa first
246
Pa last
247
P.A. Now (θ)
247°
Sep first
3.1
Sep last
3.1
Sep. Now (ρ)
3.1"
Mag pri
8.85
Mag sec
11.40
delta mag (ΔM)
2.55
Spectral class
F8 (yellow-white)
Pri motion ra
+024
Sec motion ra
Pri motion dec
+029
Sec motion dec
Notes
Nature of this double is uncertain.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
247
Precise sep
3.12
Constellation
Delphinus
SAO
105933
Tycho2
1631-01365-1
Gaia DR2
98338866304
HD
193081
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20179+1508 A 1669 1961 7 251 3.0 8.85 11.40 F8 201752.59+150812.4
20179+1508 A 1669 2016 8 247 3.1 8.85 11.40 F8 201752.59+150812.4

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