15440+0231 A 2230 AB (Psi Ser)
15h 44m 01.85s +02° 30' 55.9" P.A. 15.00 sep 4.5 mag 5.95,12.00 Sp G3V+M dist. 14.66 pc (47.82 l.y.)
| Coord 2000 |
15440+0231 |
|
Discov num |
A 2230 |
|
Comp |
AB |
|
Coord arcsec 2000 |
15 44 01.85 +02 30 55.9 |
|
| Date first |
1910 |
|
Date last |
2018 |
|
Obs |
22 |
|
| Pa first |
103 |
|
Pa last |
14.5 |
|
P.A. Now (θ) |
14.5° |
|
| Sep first |
3.6 |
|
Sep last |
4.525 |
|
Sep. Now (ρ) |
4.525" |
|
| Mag pri |
5.95 |
|
Mag sec |
12.00 |
|
delta mag (ΔM) |
6.05 |
|
Spectral class |
G3V+M (yellow/red) |
|
| Pri motion ra |
-048 |
|
Sec motion ra |
-043 |
|
| Pri motion dec |
-147 |
|
Sec motion dec |
-137 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
rPM=0.072 (< 0.3, Physical double)
This double is physical.
15440+0231 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
Psi Ser |
121152 |
15 44 02 +02 30 56 |
A 2230 AB |
2018 |
22 |
15 |
4.5 |
5.95 |
12.00 |
6.05 |
Y |
<=== |
| Show |
|
121152 |
15 44 02 +02 30 56 |
A 2230 AC |
2013 |
14 |
208 |
193.9 |
5.95 |
9.23 |
3.28 |
|
|
| Show |
|
121152 |
15 44 02 +02 30 56 |
A 2230 AD |
2020 |
24 |
286 |
173.6 |
5.95 |
10.95 |
5.00 |
|
|
| Show |
|
121152 |
15 44 02 +02 31 02 |
RDR 6 Ba,Bb |
2021 |
8 |
30 |
0.2 |
12.70 |
12.80 |
0.10 |
Y |
|
| Show |
|
121151 |
15 43 56 +02 28 01 |
A 2230 CE |
2012 |
16 |
235 |
172.8 |
9.23 |
7.28 |
1.95 |
|
|
Sextuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
Psi Ser |
|
Constellation |
Serpens |
|
SAO |
121152 |
|
HIP |
77052 |
|
| Tycho2 |
0355-01288-1 |
|
Gaia DR2 |
4423865487962417024 |
|
HD |
140538 |
|
HR |
5853 |
|
| GC |
21155 |
|
ADS |
9763 |
|
GL |
Gl 596.1A |
|
BD |
BD+02 2989 |
|
| Bayer |
Psi Serpentis |
|
Bayer name |
Psi Ser |
|
Flamsteed |
23 Serpentis |
|
Flamsteed name |
23 Ser |
|
| FK5 |
3248 |
|
Distance |
14.66 |
|
Distance ly |
47.82 |
|
Bayer greek |
ψ Ser |
|
ORBITAL ELEMENTS
| Period (P) | 900y | |
Periastron (T) | 1936.1y | ± 9.9 |
Semi-major axis (a) | 7.2a | |
| Eccentricity (e) | 0.435 | ± 0.03 |
Inclination (i) | 138.1° | ± 1.5 |
Longitude of periastron (ω) | 330.9° | ± 3.4 |
| Node (Ω) | 54.9° | ± 7.4 |
Notes | n | |
Reference | Tok2021b | |
| Equinox | | |
Last observation | | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
28.0 |
4.527 |
| 2001 |
27.3 |
4.532 |
| 2002 |
26.6 |
4.537 |
| 2003 |
26.0 |
4.542 |
| 2004 |
25.3 |
4.547 |
| 2005 |
24.6 |
4.552 |
| 2006 |
24.0 |
4.557 |
| 2007 |
23.3 |
4.561 |
| 2008 |
22.6 |
4.566 |
| 2009 |
22.0 |
4.571 |
| 2010 |
21.3 |
4.576 |
| 2011 |
20.6 |
4.581 |
| 2012 |
20.0 |
4.585 |
| 2013 |
19.3 |
4.590 |
| 2014 |
18.6 |
4.595 |
| 2015 |
18.0 |
4.600 |
| 2016 |
17.3 |
4.604 |
| 2017 |
16.7 |
4.609 |
| 2018 |
16.0 |
4.614 |
| 2019 |
15.4 |
4.619 |
| 2020 |
14.7 |
4.624 |
| 2021 |
14.1 |
4.629 |
| 2022 |
13.4 |
4.634 |
| 2023 |
12.8 |
4.639 |
| 2024 |
12.1 |
4.644 |
| 2025 |
11.5 |
4.649 |
| 2026 |
10.8 |
4.654 |
| 2027 |
10.2 |
4.660 |
| 2028 |
9.6 |
4.665 |
| 2029 |
8.9 |
4.671 |
| 2030 |
8.3 |
4.676 |
|
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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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