03306+4947 HLD 8 (HD 21539)
03h 30m 34.67s +49° 47' 21.2" P.A. 177.00 sep 2.4 mag 9.42,9.79 Sp F0
Coord 2000 |
03306+4947 |
|
Discov num |
HLD 8 |
|
Comp |
|
|
Coord arcsec 2000 |
03 30 34.67 +49 47 21.2 |
|
Date first |
1881 |
|
Date last |
2018 |
|
Obs |
23 |
|
Pa first |
177 |
|
Pa last |
176.6 |
|
P.A. Now (θ) |
176.6° |
|
Sep first |
1.9 |
|
Sep last |
2.363 |
|
Sep. Now (ρ) |
2.363" |
|
Mag pri |
9.42 |
|
Mag sec |
9.79 |
|
delta mag (ΔM) |
0.37 |
|
Spectral class |
F0 (yellow-white) |
|
Pri motion ra |
-010 |
|
Sec motion ra |
-011 |
|
Pri motion dec |
+003 |
|
Sec motion dec |
+004 |
|
Notes |
V
(Proper motion indicates physical) |
|
rPM=0.121 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 21539 |
|
Constellation |
Perseus |
|
SAO |
38889 |
|
Tycho2 |
3320-01240-1 |
|
Gaia DR2 |
441554248988231168 |
|
HD |
21539 |
|