03171+6705 BVD 31 (HD 20031)
03h 17m 06.33s +67° 05' 26.8" P.A. 163.00 sep 53.0 mag 8.01,9.67 Sp A8V+K2V dist. 162.87 pc (531.28 l.y.)
| Coord 2000 |
03171+6705 |
|
Discov num |
BVD 31 |
|
Comp |
|
|
Coord arcsec 2000 |
03 17 06.33 +67 05 26.8 |
|
| Date first |
1893 |
|
Date last |
2010 |
|
Obs |
12 |
|
| Pa first |
161 |
|
Pa last |
163.4 |
|
P.A. Now (θ) |
163.4° |
|
| Sep first |
53.7 |
|
Sep last |
53.04 |
|
Sep. Now (ρ) |
53.04" |
|
| Mag pri |
8.01 |
|
Mag sec |
9.67 |
|
delta mag (ΔM) |
1.66 |
|
Spectral class |
A8V+K2V (white/yellow-orange) |
|
| Pri motion ra |
+042 |
|
Sec motion ra |
+031 |
|
| Pri motion dec |
-035 |
|
Sec motion dec |
-030 |
|
| Notes |
U
(Proper motion indicates non-physical) |
|
rPM=0.221 (< 0.3, Physical double)
This double is not physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 20031 |
|
Constellation |
Cassiopeia |
|
SAO |
12680 |
|
HIP |
15277 |
|
| Tycho2 |
4061-00098-1 |
|
Gaia DR2 |
492298840915418880 |
|
HD |
20031 |
|
BD |
BD+66 251 |
|
| Distance |
162.87 |
|
Distance ly |
531.28 |
|
