07185-5721 HDS 1013 Aa,Ab
07h 18m 27.12s -57° 21' 06.5" P.A. 89.00 sep 0.4 mag 8.37,9.16 Sp G0IV/V dist. 59.74 pc (194.87 l.y.)
| Coord 2000 |
07185-5721 |
|
Discov num |
HDS1013 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
07 18 27.12 -57 21 06.5 |
|
| Date first |
1991 |
|
Date last |
2019 |
|
Obs |
11 |
|
| Pa first |
233 |
|
Pa last |
89.4 |
|
P.A. Now (θ) |
89.4° |
|
| Sep first |
0.3 |
|
Sep last |
0.392 |
|
Sep. Now (ρ) |
0.392" |
|
| Mag pri |
8.37 |
|
Mag sec |
9.16 |
|
delta mag (ΔM) |
0.79 |
|
Spectral class |
G0IV/V (yellow) |
|
| Pri motion ra |
+009 |
|
Sec motion ra |
|
|
| Pri motion dec |
-029 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
07185-5721 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
235087 |
07 18 27 -57 21 06 |
HDS 1013 Aa,Ab |
2019 |
11 |
89 |
0.4 |
8.37 |
9.16 |
0.79 |
Y |
<=== |
| Show |
HD 57555 |
235087 |
07 18 27 -57 21 06 |
RST 244 AB |
2019 |
8 |
261 |
2.9 |
7.94 |
11.60 |
3.66 |
|
|
| Show |
|
235087 |
07 18 27 -57 21 06 |
TOK 116 AC |
2015 |
7 |
37 |
19.6 |
7.94 |
10.90 |
2.96 |
|
|
| Show |
|
|
07 18 27 -57 21 08 |
RST 244 Ba,Bb |
2016 |
5 |
0 |
0.9 |
12.20 |
12.60 |
0.40 |
|
|
| Show |
|
|
07 18 29 -57 20 51 |
DAM 442 CD |
2015 |
3 |
356 |
5.3 |
10.90 |
14.00 |
3.10 |
|
|
Sextuple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Carina |
|
SAO |
235087 |
|
HIP |
35374 |
|
Tycho2 |
8558-02139-1 |
|
| Gaia DR2 |
5486710017858371456 |
|
HD |
57555 |
|
CP |
CP-57 1187 |
|
Distance |
59.74 |
|
| Distance ly |
194.87 |
|
ORBITAL ELEMENTS
| Period (P) | 60.68y | |
Periastron (T) | 1998.81y | |
Semi-major axis (a) | 0.365a | |
| Eccentricity (e) | 0.237 | |
Inclination (i) | 23.6° | |
Longitude of periastron (ω) | 303.5° | |
| Node (Ω) | 0.7° | |
Notes | n | |
Reference | Hrt2012a | |
| Equinox | 2000 | |
Last observation | 2010 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
318.4 |
0.268 |
| 2001 |
328.0 |
0.275 |
| 2002 |
337.1 |
0.282 |
| 2003 |
345.7 |
0.290 |
| 2004 |
353.8 |
0.298 |
| 2005 |
1.6 |
0.306 |
| 2006 |
8.9 |
0.313 |
| 2007 |
16.0 |
0.320 |
| 2008 |
22.7 |
0.327 |
| 2009 |
29.1 |
0.333 |
| 2010 |
35.4 |
0.339 |
| 2011 |
41.4 |
0.345 |
| 2012 |
47.2 |
0.351 |
| 2013 |
52.8 |
0.356 |
| 2014 |
58.3 |
0.361 |
| 2015 |
63.6 |
0.366 |
| 2016 |
68.8 |
0.371 |
| 2017 |
73.8 |
0.376 |
| 2018 |
78.7 |
0.381 |
| 2019 |
83.5 |
0.386 |
| 2020 |
88.2 |
0.391 |
| 2021 |
92.7 |
0.396 |
| 2022 |
97.2 |
0.400 |
| 2023 |
101.5 |
0.404 |
| 2024 |
105.8 |
0.409 |
| 2025 |
110.0 |
0.413 |
| 2026 |
114.0 |
0.416 |
| 2027 |
118.1 |
0.420 |
| 2028 |
122.0 |
0.423 |
| 2029 |
126.0 |
0.425 |
| 2030 |
129.8 |
0.427 |
|
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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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