20591+0418 STF 2737 AB,C (Eps Equ)
20h 59m 04.54s +04° 17' 37.8" P.A. 67.00 sep 10.6 mag 5.30,7.05 Sp F6IV+dF4 dist. 56.56 pc (184.5 l.y.)
| Coord 2000 |
20591+0418 |
|
Discov num |
STF2737 |
|
Comp |
AB,C |
|
Coord arcsec 2000 |
20 59 04.54 +04 17 37.8 |
|
| Date first |
1777 |
|
Date last |
2019 |
|
Obs |
306 |
|
| Pa first |
77 |
|
Pa last |
66.5 |
|
P.A. Now (θ) |
66.5° |
|
| Sep first |
13.0 |
|
Sep last |
10.58 |
|
Sep. Now (ρ) |
10.58" |
|
| Mag pri |
5.30 |
|
Mag sec |
7.05 |
|
delta mag (ΔM) |
1.75 |
|
Spectral class |
F6IV+dF4 (yellow-white) |
|
| Pri motion ra |
-102 |
|
Sec motion ra |
-116 |
|
| Pri motion dec |
-152 |
|
Sec motion dec |
-144 |
|
| Notes |
N
U
V
(See Notes, Proper motion indicates non-physical, Proper motion indicates physical) |
|
rPM=0.087 (< 0.3, Physical double)
This double is not physical.
20591+0418 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
126428 |
20 59 05 +04 17 38 |
STF 2737 AB |
2021 |
487 |
125 |
0.0 |
5.96 |
6.31 |
0.35 |
Y |
|
| Show |
Eps Equ |
126428 |
20 59 05 +04 17 38 |
STF 2737 AB,C |
2019 |
306 |
67 |
10.6 |
5.30 |
7.05 |
1.75 |
|
<=== |
| Show |
|
126428 |
20 59 05 +04 17 38 |
STF 2737 AD |
2013 |
4 |
293 |
69.3 |
5.96 |
13.10 |
7.14 |
|
|
| Show |
|
126428 |
20 59 04 +04 17 37 |
STF 2737 BC |
2019 |
19 |
66 |
10.6 |
6.31 |
7.05 |
0.74 |
|
|
Quadruple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
Eps Equ |
|
Constellation |
Equuleus |
|
SAO |
126428 |
|
HIP |
103571 |
|
| Tycho2 |
0521-02814-1 |
|
HD |
199766 |
|
HR |
8034 |
|
GC |
29276 |
|
| ADS |
14499 |
|
BD |
BD+03 4473 |
|
Bayer |
Epsilon Equulei |
|
Bayer name |
Eps Equ |
|
| Flamsteed |
1 Equulei |
|
Flamsteed name |
1 Equ |
|
Distance |
56.56 |
|
Distance ly |
184.5 |
|
| Bayer greek |
ε Equ |
|
