20137+4323 BU 660 AB
20h 13m 42.81s +43° 22' 44.4" P.A. 318.00 sep 8.7 mag 6.29,12.70 Sp K3III dist. 208.77 pc (681.01 l.y.)
| Coord 2000 |
20137+4323 |
|
Discov num |
BU 660 |
|
Comp |
AB |
|
Coord arcsec 2000 |
20 13 42.81 +43 22 44.4 |
|
| Date first |
1878 |
|
Date last |
2015 |
|
Obs |
13 |
|
| Pa first |
318 |
|
Pa last |
318.1 |
|
P.A. Now (θ) |
318.1° |
|
| Sep first |
9.4 |
|
Sep last |
8.717 |
|
Sep. Now (ρ) |
8.717" |
|
| Mag pri |
6.29 |
|
Mag sec |
12.70 |
|
delta mag (ΔM) |
6.41 |
|
Spectral class |
K3III (yellow-orange) |
|
| Pri motion ra |
-002 |
|
Sec motion ra |
|
|
| Pri motion dec |
+003 |
|
Sec motion dec |
|
|
| Notes |
|
|
Nature of this double is uncertain.
20137+4323 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
49336 |
20 13 43 +43 22 44 |
BU 660 AB |
2015 |
13 |
318 |
8.7 |
6.29 |
12.70 |
6.41 |
|
<=== |
| Show |
|
49336 |
20 13 43 +43 22 44 |
BU 660 AC |
2015 |
11 |
190 |
58.2 |
6.29 |
12.92 |
6.63 |
|
|
| Show |
|
49336 |
20 13 43 +43 22 44 |
FOX 250 AD |
2015 |
5 |
279 |
31.5 |
6.29 |
14.70 |
8.41 |
|
|
Quadruple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
SAO |
49336 |
|
HIP |
99685 |
|
Tycho2 |
3163-01634-1 |
|
| Gaia DR2 |
2080897296848794368 |
|
HD |
192535 |
|
HR |
7733 |
|
GC |
28098 |
|
| ADS |
13555 |
|
BD |
BD+42 3642 |
|
FK5 |
3620 |
|
Distance |
208.77 |
|
| Distance ly |
681.01 |
|
