22490+6834 STF 2947 AB (HD 216172)
22h 49m 00.68s +68° 34' 12.2" P.A. 55.00 sep 4.6 mag 6.91,7.02 Sp F4V+F5V dist. 63.69 pc (207.76 l.y.)
| Coord 2000 |
22490+6834 |
|
Discov num |
STF2947 |
|
Comp |
AB |
|
Coord arcsec 2000 |
22 49 00.68 +68 34 12.2 |
|
| Date first |
1828 |
|
Date last |
2021 |
|
Obs |
235 |
|
| Pa first |
79 |
|
Pa last |
55.3 |
|
P.A. Now (θ) |
55.3° |
|
| Sep first |
3.5 |
|
Sep last |
4.63 |
|
Sep. Now (ρ) |
4.63" |
|
| Mag pri |
6.91 |
|
Mag sec |
7.02 |
|
delta mag (ΔM) |
0.11 |
|
Spectral class |
F4V+F5V (yellow-white/yellow-white) |
|
| Pri motion ra |
+117 |
|
Sec motion ra |
+121 |
|
| Pri motion dec |
+066 |
|
Sec motion dec |
+075 |
|
| Notes |
N
T
(See Notes, Parallax indicates physical) |
|
rPM=0.069 (< 0.3, Physical double)
This double is physical.
22490+6834 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 216172 |
20259 |
22 49 01 +68 34 12 |
STF 2947 AB |
2021 |
235 |
55 |
4.6 |
6.91 |
7.02 |
0.11 |
|
<=== |
| Show |
|
20259 |
22 49 01 +68 34 12 |
STF 2947 AC |
2015 |
14 |
208 |
122.6 |
6.91 |
12.48 |
5.57 |
|
|
| Show |
|
|
22 49 02 +68 34 15 |
STF 2947 BC |
1999 |
4 |
208 |
120.7 |
7.02 |
10.40 |
3.38 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 216172 |
|
Constellation |
Cepheus |
|
SAO |
20259 |
|
HIP |
112670 |
|
| Tycho2 |
4477-01366-1 |
|
Gaia DR2 |
2225421709401544576 |
|
HD |
216172 |
|
HR |
8687 |
|
| GC |
31841 |
|
ADS |
16291 |
|
BD |
BD+67 1468 |
|
Distance |
63.69 |
|
| Distance ly |
207.76 |
|
