16003+1140 A 1639 AB
16h 00m 16.25s +11° 40' 12.6" P.A. 90.00 sep 0.3 mag 9.82,11.15 Sp G0 dist. 177.3 pc (578.35 l.y.)
| Coord 2000 |
16003+1140 |
|
Discov num |
A 1639 |
|
Comp |
AB |
|
Coord arcsec 2000 |
16 00 16.25 +11 40 12.6 |
|
| Date first |
1907 |
|
Date last |
2013 |
|
Obs |
16 |
|
| Pa first |
337 |
|
Pa last |
90.3 |
|
P.A. Now (θ) |
90.3° |
|
| Sep first |
0.3 |
|
Sep last |
0.275 |
|
Sep. Now (ρ) |
0.275" |
|
| Mag pri |
9.82 |
|
Mag sec |
11.15 |
|
delta mag (ΔM) |
1.33 |
|
Spectral class |
G0 (yellow) |
|
| Pri motion ra |
+018 |
|
Sec motion ra |
+018 |
|
| Pri motion dec |
-032 |
|
Sec motion dec |
-032 |
|
| Notes |
O
(Orbital solution) |
|
This double is physical.
16003+1140 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
16 00 16 +11 40 13 |
A 1639 AB |
2013 |
16 |
90 |
0.3 |
9.82 |
11.15 |
1.33 |
Y |
<=== |
| Show |
HD 143480 |
101864 |
16 00 16 +11 40 13 |
STF 1992 AB,C |
2019 |
64 |
326 |
6.9 |
9.46 |
9.72 |
0.26 |
|
|
Triple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Serpens |
|
HIP |
78394 |
|
Tycho2 |
0952-01077-1 |
|
Gaia DR2 |
4457542704488653952 |
|
| HD |
143480 |
|
ADS |
9872 |
|
BD |
BD+12 2930 |
|
Distance |
177.3 |
|
| Distance ly |
578.35 |
|
ORBITAL ELEMENTS
| Period (P) | 314y | |
Periastron (T) | 1938y | |
Semi-major axis (a) | 0.291a | |
| Eccentricity (e) | 0 | |
Inclination (i) | 35.8° | |
Longitude of periastron (ω) | 0° | |
| Node (Ω) | 5.1° | |
Notes | | |
Reference | Zir2012b | |
| Equinox | 2000 | |
Last observation | 2009 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
72.2 |
0.242 |
| 2001 |
73.5 |
0.242 |
| 2002 |
74.9 |
0.241 |
| 2003 |
76.2 |
0.240 |
| 2004 |
77.6 |
0.240 |
| 2005 |
79.0 |
0.239 |
| 2006 |
80.4 |
0.239 |
| 2007 |
81.8 |
0.238 |
| 2008 |
83.1 |
0.238 |
| 2009 |
84.5 |
0.237 |
| 2010 |
85.9 |
0.237 |
| 2011 |
87.3 |
0.237 |
| 2012 |
88.7 |
0.237 |
| 2013 |
90.2 |
0.236 |
| 2014 |
91.6 |
0.236 |
| 2015 |
93.0 |
0.236 |
| 2016 |
94.4 |
0.236 |
| 2017 |
95.8 |
0.236 |
| 2018 |
97.2 |
0.236 |
| 2019 |
98.6 |
0.236 |
| 2020 |
100.0 |
0.236 |
| 2021 |
101.5 |
0.237 |
| 2022 |
102.9 |
0.237 |
| 2023 |
104.3 |
0.237 |
| 2024 |
105.7 |
0.237 |
| 2025 |
107.1 |
0.238 |
| 2026 |
108.4 |
0.238 |
| 2027 |
109.8 |
0.239 |
| 2028 |
111.2 |
0.239 |
| 2029 |
112.6 |
0.240 |
| 2030 |
114.0 |
0.240 |
|
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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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