04008+0505 A 1937 AB (HD 25248)
04h 00m 47.29s +05° 04' 58.2" P.A. 150.00 sep 0.1 mag 9.38,9.48 Sp A3 dist. 184.5 pc (601.84 l.y.)
| Coord 2000 |
04008+0505 |
|
Discov num |
A 1937 |
|
Comp |
AB |
|
Coord arcsec 2000 |
04 00 47.29 +05 04 58.2 |
|
| Date first |
1908 |
|
Date last |
2020 |
|
Obs |
43 |
|
| Pa first |
39 |
|
Pa last |
149.8 |
|
P.A. Now (θ) |
166.7° |
|
| Sep first |
0.2 |
|
Sep last |
0.07 |
|
Sep. Now (ρ) |
0.087" |
|
| Mag pri |
9.38 |
|
Mag sec |
9.48 |
|
delta mag (ΔM) |
0.1 |
|
Spectral class |
A3 (white) |
|
| Pri motion ra |
+017 |
|
Sec motion ra |
|
|
| Pri motion dec |
-014 |
|
Sec motion dec |
|
|
| Notes |
N
O
W
(See Notes, Orbital solution, ) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 25248 |
|
Constellation |
Taurus |
|
SAO |
111558 |
|
HIP |
18374 |
|
| Tycho2 |
0079-01169-1 |
|
HD |
25248 |
|
ADS |
2928 |
|
BD |
BD+04 619 |
|
| CD |
CD-49 1145 |
|
CP |
CP-49 473 |
|
Distance |
184.5 |
|
Distance ly |
601.84 |
|
ORBITAL ELEMENTS
| Period (P) | 46.08y | ± 1.04 |
Periastron (T) | 2014.74y | ± 0.12 |
Semi-major axis (a) | 0.0974a | ± 0.0014 |
| Eccentricity (e) | 0.535 | ± 0.008 |
Inclination (i) | 40.8° | ± 2 |
Longitude of periastron (ω) | 0.4° | ± 3.4 |
| Node (Ω) | 31.9° | ± 3 |
Notes | n | |
Reference | Tok2020e | |
| Equinox | | |
Last observation | | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
231.6 |
0.130 |
| 2001 |
234.5 |
0.125 |
| 2002 |
237.7 |
0.119 |
| 2003 |
241.2 |
0.113 |
| 2004 |
245.2 |
0.106 |
| 2005 |
249.7 |
0.098 |
| 2006 |
255.0 |
0.091 |
| 2007 |
261.4 |
0.082 |
| 2008 |
269.2 |
0.074 |
| 2009 |
279.1 |
0.065 |
| 2010 |
291.8 |
0.057 |
| 2011 |
308.2 |
0.051 |
| 2012 |
328.6 |
0.046 |
| 2013 |
351.6 |
0.045 |
| 2014 |
15.1 |
0.045 |
| 2015 |
38.2 |
0.045 |
| 2016 |
61.6 |
0.045 |
| 2017 |
85.3 |
0.045 |
| 2018 |
107.3 |
0.048 |
| 2019 |
125.7 |
0.054 |
| 2020 |
140.0 |
0.061 |
| 2021 |
151.1 |
0.070 |
| 2022 |
159.8 |
0.078 |
| 2023 |
166.7 |
0.087 |
| 2024 |
172.4 |
0.095 |
| 2025 |
177.3 |
0.103 |
| 2026 |
181.5 |
0.110 |
| 2027 |
185.2 |
0.116 |
| 2028 |
188.5 |
0.122 |
| 2029 |
191.5 |
0.128 |
| 2030 |
194.3 |
0.132 |
|
|
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 |
|
WDS 04008+0505 A 1937 AB (HD 25248) : NOTES
| discov_num |
notes |
refcode |
| A 1937 |
Malkov et al. (2012) derive dynamical, photometric, and spectroscopic |
|
|
masses of 2.32 +/- 1.76, 2.84, and 2.00 Msun, respectively. |
Mlk2012 |
REFERENCES
| refcode |
metd |
author |
reference |
| Mlk2012 |
not - |
Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. |
2012A&A...546A..69M |
| Mlk2012 |
|
A&A 546, A69, 2012 |
|
| Tok2020e |
St j |
Tokovinin, A., Mason, B.D., Mendez, R.A., Costa, E. & Horch, E.P. |
2020AJ....160....7T |
| Tok2020e |
+orb |
AJ 160, 7, 2020 |
|
DISCOVERER
| idgroup |
discov |
author |
| 1 |
A |
Aitken, R.G. |
WDS HISTORIC DATA
| coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
| 04008+0505 |
A 1937 |
AB |
2019 |
42 |
140 |
0.1 |
9.38 |
9.48 |
A3 |
NOW |
040047.29+050458.2 |
| 04008+0505 |
A 1937 |
AB |
2020 |
43 |
150 |
0.1 |
9.38 |
9.48 |
A3 |
NOW |
040047.29+050458.2 |
If you need more information about this double, apply for a
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WDS 04008+0505 A 1937 AB (HD 25248) : VISUAL OBSERVATIONS REPORTS
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WDS 04008+0505 A 1937 AB (HD 25248) : MEASURES
No records found.
WDS 04008+0505 (HD 25248) : VIRTUAL EYEPIECE
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Pass over with the mouse cursor to display the catalog designation.
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WDS 04008+0505 (HD 25248) : ALADIN DSS IMAGE @
Error -22130
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.
