15231+7620 MFL 148 (Eta CrB)
15h 23m 07.40s +76° 19' 54.7" P.A. 143.00 sep 60.0 mag 11.11,14.33 dist. 17.86 pc (58.26 l.y.)
| Coord 2000 |
15231+7620 |
|
Discov num |
MFL 148 |
|
Comp |
|
|
Coord arcsec 2000 |
15 23 07.40 +76 19 54.7 |
|
| Date first |
1953 |
|
Date last |
2016 |
|
Obs |
10 |
|
| Pa first |
143 |
|
Pa last |
142.7 |
|
P.A. Now (θ) |
142.7° |
|
| Sep first |
59.9 |
|
Sep last |
59.969 |
|
Sep. Now (ρ) |
59.969" |
|
| Mag pri |
11.11 |
|
Mag sec |
14.33 |
|
delta mag (ΔM) |
3.22 |
|
Spectral class |
|
|
| Pri motion ra |
-031 |
|
Sec motion ra |
-031 |
|
| Pri motion dec |
+035 |
|
Sec motion dec |
+035 |
|
| Notes |
T
(Parallax indicates physical) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
Eta CrB |
|
Var name |
NSV7054 CrB |
|
Constellation |
Ursa Minor |
|
SAO |
64673 |
|
| HIP |
75312 |
|
Tycho2 |
4560-02722-1 |
|
HD |
136588 |
|
HR |
5727 |
|
| GC |
20696 |
|
ADS |
9617 |
|
BD |
BD+30 2653 |
|
Bayer |
Eta Coronae Borealis |
|
| Bayer name |
Eta CrB |
|
Distance |
17.86 |
|
Distance ly |
58.26 |
|
Bayer greek |
η CrB |
|
Bayer or Flamsteed indentifiers not always match the correct constellation because of procession and proper motion of the star. (CrB vs UMi)
