20188+3102 HDS 2902
20h 18m 49.22s +31° 02' 26.9" P.A. 296.00 sep 1.7 mag 11.38,13.77 Sp B:+K: dist. 431.03 pc (1406.02 l.y.)
Coord 2000 |
20188+3102 |
|
Discov num |
HDS2902 |
|
Comp |
|
|
Coord arcsec 2000 |
20 18 49.22 +31 02 26.9 |
|
Date first |
1991 |
|
Date last |
2011 |
|
Obs |
4 |
|
Pa first |
294 |
|
Pa last |
295.6 |
|
P.A. Now (θ) |
295.6° |
|
Sep first |
1.7 |
|
Sep last |
1.676 |
|
Sep. Now (ρ) |
1.676" |
|
Mag pri |
11.38 |
|
Mag sec |
13.77 |
|
delta mag (ΔM) |
2.39 |
|
Spectral class |
B:+K: (blue-white/yellow-orange) |
|
Pri motion ra |
+002 |
|
Sec motion ra |
-002 |
|
Pri motion dec |
-008 |
|
Sec motion dec |
-006 |
|
Notes |
|
|
rPM=0.542
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cygnus |
|
HIP |
100141 |
|
Tycho2 |
2672-00768-1 |
|
Gaia DR2 |
2053794438305564672 |
|
HD |
334032 |
|
Distance |
431.03 |
|
Distance ly |
1406.02 |
|