07211+6740 JNN 55 BC
07h 21m 08.90s +67° 39' 59.3" P.A. 26.00 sep 0.1 mag 13.50,15.80 Sp M3V+M5
| Coord 2000 |
07211+6740 |
|
Discov num |
JNN 55 |
|
Comp |
BC |
|
Coord arcsec 2000 |
07 21 08.90 +67 39 59.3 |
|
| Date first |
2008 |
|
Date last |
2018 |
|
Obs |
5 |
|
| Pa first |
59 |
|
Pa last |
25.7 |
|
P.A. Now (θ) |
25.7° |
|
| Sep first |
0.2 |
|
Sep last |
0.116 |
|
Sep. Now (ρ) |
0.116" |
|
| Mag pri |
13.50 |
|
Mag sec |
15.80 |
|
delta mag (ΔM) |
2.3 |
|
Spectral class |
M3V+M5 (red/red) |
|
| Pri motion ra |
-067 |
|
Sec motion ra |
|
|
| Pri motion dec |
+076 |
|
Sec motion dec |
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|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
07211+6740 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
14155 |
07 21 07 +67 39 43 |
RED 22 AB |
2016 |
10 |
38 |
20.7 |
8.40 |
13.45 |
5.05 |
|
|
| Show |
|
|
07 21 09 +67 39 59 |
JNN 55 BC |
2018 |
5 |
26 |
0.1 |
13.50 |
15.80 |
2.30 |
Y |
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Camelopardalis |
|
Gaia DR2 |
1108183132386895872 |
|
ORBITAL ELEMENTS
| Period (P) | 13.97y | ± 1.23 |
Periastron (T) | 2013.53y | ± 0.9 |
Semi-major axis (a) | 0.178a | ± 0.04 |
| Eccentricity (e) | 0.78 | |
Inclination (i) | 67.9° | ± 7.8 |
Longitude of periastron (ω) | 106.7° | ± 7.4 |
| Node (Ω) | 94.5° | ± 6.5 |
Notes | | |
Reference | Tok2019e | |
| Equinox | 2000 | |
Last observation | 2018 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
281.9 |
0.069 |
| 2001 |
310.0 |
0.090 |
| 2002 |
332.9 |
0.093 |
| 2003 |
354.1 |
0.098 |
| 2004 |
12.1 |
0.109 |
| 2005 |
26.5 |
0.123 |
| 2006 |
37.9 |
0.138 |
| 2007 |
47.0 |
0.152 |
| 2008 |
54.6 |
0.165 |
| 2009 |
61.4 |
0.173 |
| 2010 |
67.7 |
0.175 |
| 2011 |
74.2 |
0.168 |
| 2012 |
82.0 |
0.144 |
| 2013 |
97.0 |
0.080 |
| 2014 |
283.1 |
0.070 |
| 2015 |
310.7 |
0.090 |
| 2016 |
333.5 |
0.093 |
| 2017 |
354.7 |
0.099 |
| 2018 |
12.6 |
0.109 |
| 2019 |
26.9 |
0.123 |
| 2020 |
38.2 |
0.138 |
| 2021 |
47.2 |
0.153 |
| 2022 |
54.9 |
0.165 |
| 2023 |
61.6 |
0.173 |
| 2024 |
67.9 |
0.175 |
| 2025 |
74.4 |
0.167 |
| 2026 |
82.3 |
0.143 |
| 2027 |
97.9 |
0.077 |
| 2028 |
284.2 |
0.072 |
| 2029 |
311.4 |
0.090 |
| 2030 |
334.2 |
0.093 |
|
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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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