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 |
|
Comp |
AB |
|
Coord arcsec 2000 |
04 44 48.23 +05 17 22.3 |
|
| Date first |
1831 |
|
Date last |
2020 |
|
Obs |
161 |
|
| Pa first |
311 |
|
Pa last |
276.2 |
|
P.A. Now (θ) |
276.2° |
|
| Sep first |
4.5 |
|
Sep last |
4.805 |
|
Sep. Now (ρ) |
4.805" |
|
| Mag pri |
8.78 |
|
Mag sec |
8.92 |
|
delta mag (ΔM) |
0.14 |
|
Spectral class |
G5 (yellow) |
|
| Pri motion ra |
-116 |
|
Sec motion ra |
-122 |
|
| Pri motion dec |
-044 |
|
Sec motion dec |
-058 |
|
| Notes |
O
(Orbital solution) |
|
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 |
|
|
04 44 48 +05 17 23 |
GWP 612 BC |
2016 |
5 |
245 |
181.4 |
8.92 |
13.80 |
4.88 |
|
|
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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