02507+5554 STF 307 AC
02h 50m 41.81s +55° 53' 43.8" P.A. 269.00 sep 64.0 mag 3.76,11.61 Sp M3Ib-IIa dist. 269.54 pc (879.24 l.y.)
| Coord 2000 |
02507+5554 |
|
Discov num |
STF 307 |
|
Comp |
AC |
|
Coord arcsec 2000 |
02 50 41.81 +55 53 43.8 |
|
| Date first |
1878 |
|
Date last |
2014 |
|
Obs |
14 |
|
| Pa first |
268 |
|
Pa last |
268.8 |
|
P.A. Now (θ) |
268.8° |
|
| Sep first |
67.0 |
|
Sep last |
63.978 |
|
Sep. Now (ρ) |
63.978" |
|
| Mag pri |
3.76 |
|
Mag sec |
11.61 |
|
delta mag (ΔM) |
7.85 |
|
Spectral class |
M3Ib-IIa (red) |
|
| Pri motion ra |
+016 |
|
Sec motion ra |
+001 |
|
| Pri motion dec |
-014 |
|
Sec motion dec |
-002 |
|
| Notes |
N
S
(See Notes, Parallax indidates non-physical) |
|
rPM=0.904
This double is not physical.
02507+5554 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
Miram |
23655 |
02 50 42 +55 53 44 |
STF 307 AB |
2018 |
58 |
301 |
28.7 |
3.76 |
8.50 |
4.74 |
|
|
| Show |
|
23655 |
02 50 42 +55 53 44 |
STF 307 AC |
2014 |
14 |
269 |
64.0 |
3.76 |
11.61 |
7.85 |
|
<=== |
| Show |
|
23655 |
02 50 42 +55 53 44 |
SHJ 34 AE |
2012 |
8 |
297 |
242.9 |
3.76 |
9.24 |
5.48 |
|
|
| Show |
|
23655 |
02 50 42 +55 53 44 |
WAL 19 AF |
2013 |
7 |
25 |
57.7 |
3.76 |
11.44 |
7.68 |
|
|
| Show |
|
|
02 50 34 +55 53 44 |
WRD 1 CD |
2015 |
14 |
116 |
5.2 |
11.61 |
12.70 |
1.09 |
|
|
| Show |
|
|
02 50 34 +55 53 44 |
FYM 161 CG |
2015 |
6 |
229 |
15.8 |
11.61 |
14.00 |
2.39 |
|
|
Septuple system
7 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Common name |
Miram |
|
Constellation |
Perseus |
|
SAO |
23655 |
|
HIP |
13268 |
|
| Tycho2 |
3704-01332-1 |
|
Gaia DR2 |
454491381980370304 |
|
HD |
17506 |
|
HR |
834 |
|
| GC |
3390 |
|
ADS |
2157 |
|
BD |
BD+55 714 |
|
Bayer |
Eta Persei |
|
| Bayer name |
Eta Per |
|
Flamsteed |
15 Persei |
|
Flamsteed name |
15 Per |
|
FK5 |
99 |
|
| Distance |
269.54 |
|
Distance ly |
879.24 |
|
Bayer greek |
η Per |
|
