07433+2853 CIA 7 Aa,Ab
07h 43m 18.73s +28° 53' 00.6" P.A. 22.00 sep 0.0 mag 4.28,11.00 Sp K1III dist. 38.34 pc (125.07 l.y.)
Coord 2000 |
07433+2853 |
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Discov num |
CIA 7 |
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Comp |
Aa,Ab |
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Coord arcsec 2000 |
07 43 18.73 +28 53 00.6 |
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Date first |
2011 |
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Date last |
2012 |
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Obs |
5 |
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Pa first |
19 |
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Pa last |
21.6 |
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P.A. Now (θ) |
21.6° |
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Sep first |
0.0 |
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Sep last |
0.003 |
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Sep. Now (ρ) |
0.003" |
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Mag pri |
4.28 |
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Mag sec |
11.00 |
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delta mag (ΔM) |
6.72 |
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Spectral class |
K1III (yellow-orange) |
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Pri motion ra |
+062 |
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Sec motion ra |
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Pri motion dec |
-232 |
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Sec motion dec |
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Notes |
N
O
(See Notes, Orbital solution) |
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This double is physical.
07433+2853 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
79638 |
07 43 19 +28 53 01 |
CIA 7 Aa,Ab |
2012 |
5 |
22 |
0.0 |
4.28 |
11.00 |
6.72 |
Y |
<=== |
Show |
Sig Gem |
79638 |
07 43 19 +28 53 01 |
BLL 23 AB |
1998 |
7 |
319 |
195.5 |
4.28 |
10.80 |
6.52 |
|
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Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Gemini |
|
SAO |
79638 |
|
HIP |
37629 |
|
Tycho2 |
1924-02022-1 |
|
Gaia DR2 |
878467085734742400 |
|
HD |
62044 |
|
HR |
2973 |
|
GC |
10373 |
|
BD |
BD+29 1590 |
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Bayer |
Sigma Geminorum |
|
Bayer name |
Sig Gem |
|
Flamsteed |
75 Geminorum |
|
Flamsteed name |
75 Gem |
|
Distance |
38.34 |
|
Distance ly |
125.07 |
|
Bayer greek |
σ Gem |
|
ORBITAL ELEMENTS
Period (P) | 19.6027d | ± 0.0005 |
Periastron (T) | 53583.98d (2005.584y) | ± 0.03 |
Semi-major axis (a) | 4.63m | ± 0.04 |
Eccentricity (e) | 0 | |
Inclination (i) | 107.7° | ± 0.8 |
Longitude of periastron (ω) | 0° | |
Node (Ω) | 1.2° | ± 0.8 |
Notes | n | |
Reference | CIA2015b | |
Equinox | 2000 | |
Last observation | 2012 | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000-01-01 |
5.9 |
0.004 |
2001-01-01 |
170.3 |
0.004 |
2002-01-01 |
301.5 |
0.002 |
2003-01-01 |
22.8 |
0.003 |
2004-01-01 |
182.7 |
0.005 |
2005-01-01 |
345.5 |
0.004 |
2006-01-01 |
90.0 |
0.001 |
2007-01-01 |
196.5 |
0.004 |
2008-01-01 |
359.5 |
0.005 |
2009-01-01 |
159.1 |
0.003 |
2010-01-01 |
239.1 |
0.002 |
2011-01-01 |
11.8 |
0.004 |
2012-01-01 |
176.2 |
0.004 |
2013-01-01 |
329.7 |
0.002 |
2014-01-01 |
39.3 |
0.002 |
2015-01-01 |
187.9 |
0.004 |
2016-01-01 |
352.6 |
0.004 |
2017-01-01 |
134.5 |
0.002 |
2018-01-01 |
207.5 |
0.003 |
2019-01-01 |
4.5 |
0.005 |
2020-01-01 |
168.4 |
0.004 |
2021-01-01 |
288.9 |
0.001 |
2022-01-01 |
19.8 |
0.003 |
2023-01-01 |
181.3 |
0.005 |
2024-01-01 |
343.0 |
0.003 |
2025-01-01 |
75.5 |
0.001 |
2026-01-01 |
194.3 |
0.004 |
2027-01-01 |
358.1 |
0.005 |
2028-01-01 |
155.5 |
0.003 |
2029-01-01 |
229.2 |
0.002 |
2030-01-01 |
10.0 |
0.004 |
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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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