18562+0412 STF 2417 BC
18h 56m 14.64s +04° 12' 07.6" P.A. 56.00 sep 405.6 mag 4.93,6.78 Sp A5Vn dist. 51.95 pc (169.46 l.y.)
| Coord 2000 |
18562+0412 |
|
Discov num |
STF2417 |
|
Comp |
BC |
|
Coord arcsec 2000 |
18 56 14.64 +04 12 07.6 |
|
| Date first |
1908 |
|
Date last |
2007 |
|
Obs |
17 |
|
| Pa first |
56 |
|
Pa last |
55.8 |
|
P.A. Now (θ) |
55.8° |
|
| Sep first |
414.8 |
|
Sep last |
405.583 |
|
Sep. Now (ρ) |
405.583" |
|
| Mag pri |
4.93 |
|
Mag sec |
6.78 |
|
delta mag (ΔM) |
1.85 |
|
Spectral class |
A5Vn (white) |
|
| Pri motion ra |
+052 |
|
Sec motion ra |
-001 |
|
| Pri motion dec |
+031 |
|
Sec motion dec |
-084 |
|
| Notes |
N
U
(See Notes, Proper motion indicates non-physical) |
|
rPM=1.507
This double is not physical.
18562+0412 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
Alya |
124068 |
18 56 13 +04 12 13 |
STF 2417 AB |
2019 |
236 |
106 |
22.4 |
4.59 |
4.93 |
0.34 |
|
|
| Show |
|
124068 |
18 56 13 +04 12 13 |
STF 2417 AC |
2007 |
18 |
58 |
421.0 |
4.59 |
6.78 |
2.19 |
|
|
| Show |
|
124070 |
18 56 15 +04 12 08 |
STF 2417 BC |
2007 |
17 |
56 |
405.6 |
4.93 |
6.78 |
1.85 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Serpens |
|
SAO |
124070 |
|
HIP |
92951 |
|
Tycho2 |
0457-00688-1 |
|
| Gaia DR2 |
4281199318773462016 |
|
HD |
175639 |
|
HR |
7142 |
|
GC |
25993 |
|
| ADS |
11853 |
|
BD |
BD+04 3917 |
|
Bayer |
Theta 2 Serpentis |
|
Bayer name |
The2 Ser |
|
| Flamsteed |
63 Serpentis |
|
Flamsteed name |
63 Ser |
|
Distance |
51.95 |
|
Distance ly |
169.46 |
|
| Bayer greek |
θ2 Ser |
|
