15348+1032 STF 1954 AB (Del Ser)
15h 34m 48.14s +10° 32' 20.0" P.A. 171.00 sep 4.0 mag 4.17,5.16 Sp F0IV dist. 69.93 pc (228.11 l.y.)
| Coord 2000 |
15348+1032 |
|
Discov num |
STF1954 |
|
Comp |
AB |
|
Coord arcsec 2000 |
15 34 48.14 +10 32 20.0 |
|
| Date first |
1819 |
|
Date last |
2020 |
|
Obs |
521 |
|
| Pa first |
202 |
|
Pa last |
171.4 |
|
P.A. Now (θ) |
171.4° |
|
| Sep first |
3.4 |
|
Sep last |
3.97 |
|
Sep. Now (ρ) |
3.97" |
|
| Mag pri |
4.17 |
|
Mag sec |
5.16 |
|
delta mag (ΔM) |
0.99 |
|
Spectral class |
F0IV (yellow-white) |
|
| Pri motion ra |
-074 |
|
Sec motion ra |
-073 |
|
| Pri motion dec |
+006 |
|
Sec motion dec |
+003 |
|
| Notes |
N
O
Y
(See Notes, Orbital solution, Parallax indicates components are non-physical) |
|
rPM=0.043 (< 0.3, Physical double)
This double is physical.
15348+1032 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
Del Ser |
101623 |
15 34 48 +10 32 20 |
STF 1954 AB |
2020 |
521 |
171 |
4.0 |
4.17 |
5.16 |
0.99 |
Y |
<=== |
| Show |
|
101623 |
15 34 48 +10 32 20 |
STF 1954 AC |
2014 |
7 |
18 |
66.6 |
4.17 |
13.90 |
9.73 |
|
|
| Show |
|
101623 |
15 34 48 +10 32 20 |
SMR 62 AE |
2014 |
4 |
42 |
63.5 |
4.17 |
15.00 |
10.83 |
|
|
| Show |
|
|
15 34 49 +10 33 23 |
STF 1954 CD |
2018 |
10 |
341 |
4.0 |
13.90 |
14.60 |
0.70 |
|
|
Quintuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
Del Ser |
|
Constellation |
Serpens |
|
SAO |
101623 |
|
HIP |
76276 |
|
| Tycho2 |
0933-01238-1 |
|
Gaia DR2 |
1165987658411028096 |
|
HD |
138917 |
|
HR |
5788 |
|
| GC |
20941 |
|
ADS |
9701 |
|
BD |
BD+11 2821 |
|
Bayer |
Delta Serpentis |
|
| Bayer name |
Del Ser |
|
Flamsteed |
13 Serpentis |
|
Flamsteed name |
13 Ser |
|
Distance |
69.93 |
|
| Distance ly |
228.11 |
|
Bayer greek |
δ Ser |
|
ORBITAL ELEMENTS
| Period (P) | 1150.1045y | ± 451.4303 |
Periastron (T) | 2138.944y | ± 53.3993 |
Semi-major axis (a) | 6.37793a | ± 3.4092 |
| Eccentricity (e) | 0.68349 | ± 0.25845 |
Inclination (i) | 101.216° | ± 6.721 |
Longitude of periastron (ω) | 80.433° | ± 16.597 |
| Node (Ω) | 162.085° | ± 4.65 |
Notes | n | |
Reference | Izm2019 | |
| Equinox | | |
Last observation | 2015 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
173.8 |
4.051 |
| 2001 |
173.7 |
4.052 |
| 2002 |
173.6 |
4.053 |
| 2003 |
173.5 |
4.054 |
| 2004 |
173.3 |
4.054 |
| 2005 |
173.2 |
4.055 |
| 2006 |
173.1 |
4.055 |
| 2007 |
173.0 |
4.055 |
| 2008 |
172.9 |
4.055 |
| 2009 |
172.8 |
4.054 |
| 2010 |
172.7 |
4.054 |
| 2011 |
172.6 |
4.053 |
| 2012 |
172.5 |
4.053 |
| 2013 |
172.4 |
4.052 |
| 2014 |
172.2 |
4.051 |
| 2015 |
172.1 |
4.049 |
| 2016 |
172.0 |
4.048 |
| 2017 |
171.9 |
4.046 |
| 2018 |
171.8 |
4.044 |
| 2019 |
171.7 |
4.042 |
| 2020 |
171.6 |
4.040 |
| 2021 |
171.5 |
4.037 |
| 2022 |
171.4 |
4.035 |
| 2023 |
171.2 |
4.032 |
| 2024 |
171.1 |
4.029 |
| 2025 |
171.0 |
4.025 |
| 2026 |
170.9 |
4.022 |
| 2027 |
170.8 |
4.018 |
| 2028 |
170.7 |
4.014 |
| 2029 |
170.6 |
4.010 |
| 2030 |
170.5 |
4.006 |
|
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
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Measures: green=micrometric, blue=interferometric, purple=photographic |
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