21454+4356 HO 168 AB (HD 207087)
21h 45m 24.12s +43° 56' 08.1" P.A. 42.00 sep 0.8 mag 9.46,9.55 Sp K0
| Coord 2000 |
21454+4356 |
|
Discov num |
HO 168 |
|
Comp |
AB |
|
Coord arcsec 2000 |
21 45 24.12 +43 56 08.1 |
|
| Date first |
1885 |
|
Date last |
2016 |
|
Obs |
33 |
|
| Pa first |
69 |
|
Pa last |
41.6 |
|
P.A. Now (θ) |
41.6° |
|
| Sep first |
1.0 |
|
Sep last |
0.807 |
|
Sep. Now (ρ) |
0.807" |
|
| Mag pri |
9.46 |
|
Mag sec |
9.55 |
|
delta mag (ΔM) |
0.09 |
|
Spectral class |
K0 (yellow-orange) |
|
| Pri motion ra |
+066 |
|
Sec motion ra |
+066 |
|
| Pri motion dec |
+006 |
|
Sec motion dec |
+006 |
|
| Notes |
|
|
Nature of this double is uncertain.
21454+4356 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 207087 |
51261 |
21 45 24 +43 56 08 |
HO 168 AB |
2016 |
33 |
42 |
0.8 |
9.46 |
9.55 |
0.09 |
|
<=== |
| Show |
|
51261 |
21 45 24 +43 56 08 |
HO 168 AC |
2014 |
6 |
267 |
18.7 |
9.46 |
14.20 |
4.74 |
|
|
| Show |
|
51261 |
21 45 24 +43 56 08 |
HO 168 AD |
2014 |
7 |
21 |
28.3 |
9.46 |
13.18 |
3.72 |
|
|
| Show |
|
51261 |
21 45 24 +43 56 08 |
HO 168 AE |
2014 |
7 |
22 |
28.3 |
9.46 |
14.20 |
4.74 |
|
|
Quintuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 207087 |
|
Constellation |
Cygnus |
|
SAO |
51261 |
|
Tycho2 |
3196-01988-1 |
|
| Gaia DR2 |
1973071146442645760 |
|
HD |
207087 |
|
