20475+5553 HJ 1580
20h 47m 31.69s +55° 53' 05.7" P.A. 245.00 sep 10.9 mag 9.38,12.65 Sp B8 dist. 384.62 pc (1254.63 l.y.)
Coord 2000 |
20475+5553 |
|
Discov num |
HJ 1580 |
|
Comp |
|
|
Coord arcsec 2000 |
20 47 31.69 +55 53 05.7 |
|
Date first |
1828 |
|
Date last |
2015 |
|
Obs |
11 |
|
Pa first |
249 |
|
Pa last |
244.9 |
|
P.A. Now (θ) |
244.9° |
|
Sep first |
4.0 |
|
Sep last |
10.871 |
|
Sep. Now (ρ) |
10.871" |
|
Mag pri |
9.38 |
|
Mag sec |
12.65 |
|
delta mag (ΔM) |
3.27 |
|
Spectral class |
B8 (blue-white) |
|
Pri motion ra |
-002 |
|
Sec motion ra |
-005 |
|
Pri motion dec |
-006 |
|
Sec motion dec |
-002 |
|
Notes |
|
|
rPM=0.791
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Cepheus |
|
SAO |
32895 |
|
HIP |
102597 |
|
Tycho2 |
3955-01333-1 |
|
Gaia DR2 |
2183906486800560128 |
|
HD |
239498 |
|
BD |
BD+55 2467 |
|
Distance |
384.62 |
|
Distance ly |
1254.63 |
|