04448+0517 STF 589 AB (HD 30101)
04h 44m 48.23s +05° 17' 22.3" P.A. 276.00 sep 4.8 mag 8.78,8.92 Sp G5 dist. 37.75 pc (123.14 l.y.)
Coord 2000 |
04448+0517 |
|
Discov num |
STF 589 |
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Comp |
AB |
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Coord arcsec 2000 |
04 44 48.23 +05 17 22.3 |
|
Date first |
1831 |
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Date last |
2020 |
|
Obs |
161 |
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Pa first |
311 |
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Pa last |
276.2 |
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P.A. Now (θ) |
276.2° |
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Sep first |
4.5 |
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Sep last |
4.805 |
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Sep. Now (ρ) |
4.805" |
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Mag pri |
8.78 |
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Mag sec |
8.92 |
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delta mag (ΔM) |
0.14 |
|
Spectral class |
G5 (yellow) |
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Pri motion ra |
-116 |
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Sec motion ra |
-122 |
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Pri motion dec |
-044 |
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Sec motion dec |
-058 |
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Notes |
O
(Orbital solution) |
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rPM=0.113 (< 0.3, Physical double)
This double is physical.
04448+0517 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
HD 30101 |
112035 |
04 44 48 +05 17 22 |
STF 589 AB |
2020 |
161 |
276 |
4.8 |
8.78 |
8.92 |
0.14 |
Y |
<=== |
Show |
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04 44 48 +05 17 23 |
GWP 612 BC |
2016 |
5 |
245 |
181.4 |
8.92 |
13.80 |
4.88 |
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Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 30101 |
|
Constellation |
Orion |
|
SAO |
112035 |
|
HIP |
22067 |
|
Tycho2 |
0091-01410-1 |
|
Gaia DR2 |
3281945898565701504 |
|
HD |
30101 |
|
GC |
5779 |
|
ADS |
3417 |
|
BD |
BD+05 718 |
|
Distance |
37.75 |
|
Distance ly |
123.14 |
|
ORBITAL ELEMENTS
Period (P) | 1191.4013y | ± 443.5595 |
Periastron (T) | 1679.8315y | ± 102.4838 |
Semi-major axis (a) | 5.7533a | ± 2.93268 |
Eccentricity (e) | 0.64885 | ± 0.27335 |
Inclination (i) | 120.764° | ± 17.159 |
Longitude of periastron (ω) | 97.965° | ± 10.387 |
Node (Ω) | 156.743° | ± 38.983 |
Notes | | |
Reference | Izm2019 | |
Equinox | | |
Last observation | 2015 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
label |
theta |
rho |
2000 |
279.4 |
4.607 |
2001 |
279.3 |
4.608 |
2002 |
279.1 |
4.608 |
2003 |
278.9 |
4.608 |
2004 |
278.7 |
4.608 |
2005 |
278.5 |
4.609 |
2006 |
278.3 |
4.609 |
2007 |
278.2 |
4.609 |
2008 |
278.0 |
4.610 |
2009 |
277.8 |
4.610 |
2010 |
277.6 |
4.610 |
2011 |
277.4 |
4.610 |
2012 |
277.2 |
4.611 |
2013 |
277.1 |
4.611 |
2014 |
276.9 |
4.611 |
2015 |
276.7 |
4.611 |
2016 |
276.5 |
4.612 |
2017 |
276.3 |
4.612 |
2018 |
276.1 |
4.612 |
2019 |
276.0 |
4.613 |
2020 |
275.8 |
4.613 |
2021 |
275.6 |
4.613 |
2022 |
275.4 |
4.613 |
2023 |
275.2 |
4.614 |
2024 |
275.0 |
4.614 |
2025 |
274.9 |
4.614 |
2026 |
274.7 |
4.615 |
2027 |
274.5 |
4.615 |
2028 |
274.3 |
4.615 |
2029 |
274.1 |
4.616 |
2030 |
273.9 |
4.616 |
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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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