04312+5858 STI 2051 AB
04h 31m 11.52s +58° 58' 37.5" P.A. 59.00 sep 11.0 mag 11.38,12.13 Sp M4.0V+DC5 dist. 5.58 pc (18.2 l.y.)
Coord 2000 |
04312+5858 |
|
Discov num |
STI2051 |
|
Comp |
AB |
|
Coord arcsec 2000 |
04 31 11.52 +58 58 37.5 |
|
Date first |
1908 |
|
Date last |
2020 |
|
Obs |
111 |
|
Pa first |
145 |
|
Pa last |
58.6 |
|
P.A. Now (θ) |
58.6° |
|
Sep first |
6.9 |
|
Sep last |
10.99 |
|
Sep. Now (ρ) |
10.99" |
|
Mag pri |
11.38 |
|
Mag sec |
12.13 |
|
delta mag (ΔM) |
0.75 |
|
Spectral class |
M4.0V+DC5 (red/white dwarf) |
|
Pri motion ra |
+130 |
|
Sec motion ra |
+134 |
|
Pri motion dec |
-205 |
|
Sec motion dec |
-196 |
|
Notes |
N
C
P
(See Notes, Has orbit and linear solution, 100-year proper motion) |
|
rPM=0.041 (< 0.3, Physical double)
This double is physical.
04312+5858 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
|
04 31 12 +58 58 38 |
STI 2051 AB |
2020 |
111 |
59 |
11.0 |
11.38 |
12.13 |
0.75 |
Y |
<=== |
Show |
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04 31 12 +58 58 38 |
PWS 2 AC |
2000 |
2 |
326 |
139.3 |
10.97 |
15.31 |
4.34 |
|
|
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Camelopardalis |
|
HIP |
21088 |
|
Tycho2 |
3744-00412-1 |
|
GL |
Gl 169.1A |
|
Distance |
5.58 |
|
Distance ly |
18.2 |
|
ORBITAL ELEMENTS
Period (P) | 1799.89y | |
Periastron (T) | 1798.9864y | |
Semi-major axis (a) | 32.2191a | |
Eccentricity (e) | 0.7054 | |
Inclination (i) | 105.2509° | |
Longitude of periastron (ω) | 333.2549° | |
Node (Ω) | 10.3888° | |
Notes | n | |
Reference | Kpp2020f | |
Equinox | | |
Last observation | | |
Grade | 5 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
245.1 |
8.962 |
2001 |
244.6 |
9.039 |
2002 |
244.1 |
9.116 |
2003 |
243.7 |
9.193 |
2004 |
243.2 |
9.271 |
2005 |
242.7 |
9.349 |
2006 |
242.3 |
9.428 |
2007 |
241.9 |
9.507 |
2008 |
241.5 |
9.586 |
2009 |
241.0 |
9.666 |
2010 |
240.6 |
9.746 |
2011 |
240.2 |
9.827 |
2012 |
239.8 |
9.907 |
2013 |
239.4 |
9.989 |
2014 |
239.0 |
10.070 |
2015 |
238.7 |
10.152 |
2016 |
238.3 |
10.234 |
2017 |
237.9 |
10.316 |
2018 |
237.6 |
10.398 |
2019 |
237.2 |
10.481 |
2020 |
236.9 |
10.564 |
2021 |
236.5 |
10.647 |
2022 |
236.2 |
10.730 |
2023 |
235.8 |
10.814 |
2024 |
235.5 |
10.898 |
2025 |
235.2 |
10.982 |
2026 |
234.9 |
11.066 |
2027 |
234.6 |
11.150 |
2028 |
234.3 |
11.235 |
2029 |
233.9 |
11.320 |
2030 |
233.6 |
11.404 |
|
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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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SUSPECTED ORBITAL ELEMENTS
Identifier | 04312+5858 STI2051 A |
coord_arcsec_2000 | 043111.52+585837.5 |
Period (P) | 23y | |
Periastron (T) | 1966y | |
Semi-major axis (a) | 0.07a | |
Eccentricity (e) | 0.3 | |
Inclination (i) | 65° | |
Longitude of periastron (ω) | 73° | |
Node (Ω) | 97° | |
Notes | n | |
Reference | Str1977 | |
Equinox | | |
Last observation | 1977 | |
Grade | 9 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
324.1 |
0.049 |
2001 |
339.2 |
0.042 |
2002 |
358.4 |
0.038 |
2003 |
20.0 |
0.038 |
2004 |
39.9 |
0.041 |
2005 |
55.8 |
0.047 |
2006 |
68.0 |
0.054 |
2007 |
77.8 |
0.059 |
2008 |
86.3 |
0.061 |
2009 |
94.5 |
0.060 |
2010 |
104.1 |
0.053 |
2011 |
118.6 |
0.040 |
2012 |
151.1 |
0.024 |
2013 |
215.3 |
0.024 |
2014 |
249.9 |
0.039 |
2015 |
264.2 |
0.054 |
2016 |
272.8 |
0.065 |
2017 |
279.3 |
0.072 |
2018 |
285.1 |
0.074 |
2019 |
290.8 |
0.073 |
2020 |
297.0 |
0.069 |
2021 |
304.1 |
0.063 |
2022 |
312.8 |
0.056 |
2023 |
324.1 |
0.049 |
2024 |
339.2 |
0.042 |
2025 |
358.4 |
0.038 |
2026 |
20.0 |
0.038 |
2027 |
39.9 |
0.041 |
2028 |
55.8 |
0.047 |
2029 |
68.0 |
0.054 |
2030 |
77.8 |
0.059 |
|
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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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