03344+2428 STF 412 AB
03h 34m 26.62s +24° 27' 52.1" P.A. 350.00 sep 0.8 mag 6.60,6.86 Sp A3V+A3V dist. 131.58 pc (429.21 l.y.)
| Coord 2000 |
03344+2428 |
|
Discov num |
STF 412 |
|
Comp |
AB |
|
Coord arcsec 2000 |
03 34 26.62 +24 27 52.1 |
|
| Date first |
1828 |
|
Date last |
2022 |
|
Obs |
314 |
|
| Pa first |
272 |
|
Pa last |
350 |
|
P.A. Now (θ) |
349.1° |
|
| Sep first |
0.6 |
|
Sep last |
0.79 |
|
Sep. Now (ρ) |
0.778" |
|
| Mag pri |
6.60 |
|
Mag sec |
6.86 |
|
delta mag (ΔM) |
0.26 |
|
Spectral class |
A3V+A3V (white/white) |
|
| Pri motion ra |
+006 |
|
Sec motion ra |
+006 |
|
| Pri motion dec |
-026 |
|
Sec motion dec |
-026 |
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
03344+2428 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
75999 |
03 34 27 +24 27 52 |
STF 412 AB |
2022 |
314 |
350 |
0.8 |
6.60 |
6.86 |
0.26 |
Y |
<=== |
| Show |
7 Tau |
75999 |
03 34 27 +24 27 52 |
STF 412 AB,C |
2014 |
86 |
53 |
22.4 |
5.94 |
9.92 |
3.98 |
|
|
Triple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Var name |
NSV1192 Tau |
|
Constellation |
Taurus |
|
SAO |
75999 |
|
HIP |
16664 |
|
| Tycho2 |
1802-01524-1 |
|
Gaia DR2 |
68486384567412992 |
|
HD |
22091 |
|
HR |
1086 |
|
| GC |
4257 |
|
ADS |
2616 |
|
BD |
BD+23 473 |
|
Flamsteed |
7 Tauri |
|
| Flamsteed name |
7 Tau |
|
Distance |
131.58 |
|
Distance ly |
429.21 |
|
ORBITAL ELEMENTS
| Period (P) | 522.16y | |
Periastron (T) | 1911.62y | |
Semi-major axis (a) | 0.625a | |
| Eccentricity (e) | 0.679 | |
Inclination (i) | 157.2° | |
Longitude of periastron (ω) | 238.1° | |
| Node (Ω) | 13° | |
Notes | n | |
Reference | Sca2002a | |
| Equinox | 2000 | |
Last observation | 2000 | |
Grade | 3 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
356.9 |
0.689 |
| 2001 |
356.5 |
0.693 |
| 2002 |
356.2 |
0.698 |
| 2003 |
355.8 |
0.702 |
| 2004 |
355.4 |
0.706 |
| 2005 |
355.1 |
0.710 |
| 2006 |
354.7 |
0.714 |
| 2007 |
354.3 |
0.718 |
| 2008 |
354.0 |
0.722 |
| 2009 |
353.6 |
0.726 |
| 2010 |
353.3 |
0.730 |
| 2011 |
353.0 |
0.734 |
| 2012 |
352.6 |
0.738 |
| 2013 |
352.3 |
0.742 |
| 2014 |
352.0 |
0.745 |
| 2015 |
351.6 |
0.749 |
| 2016 |
351.3 |
0.753 |
| 2017 |
351.0 |
0.756 |
| 2018 |
350.7 |
0.760 |
| 2019 |
350.4 |
0.764 |
| 2020 |
350.1 |
0.767 |
| 2021 |
349.7 |
0.771 |
| 2022 |
349.4 |
0.774 |
| 2023 |
349.1 |
0.778 |
| 2024 |
348.8 |
0.781 |
| 2025 |
348.5 |
0.784 |
| 2026 |
348.2 |
0.788 |
| 2027 |
348.0 |
0.791 |
| 2028 |
347.7 |
0.794 |
| 2029 |
347.4 |
0.797 |
| 2030 |
347.1 |
0.801 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
WDS 03344+2428 STF 412 AB : NOTES
| discov_num |
notes |
refcode |
| STF 412 |
7 Tau. Only P, T, and a were redetermined by Vlaicu & Vasile (1961); |
Vla1965 |
|
the remaining elements were from the orbit of Luyten (1934). |
Luy1934c |
|
See Baize & Petit (1989) catalog of doubles with variable component. |
Baz1989d |
|
AB: Malkov et al. (2012) derive dynamical, photometric, and |
|
|
spectroscopic masses 2.04 +/- 1.54, 4.91, and 2.09 Msun, respectively. |
Mlk2012 |
|
AB,C: H 4 88. |
MEv2010 |
REFERENCES
| refcode |
metd |
author |
reference |
| Baz1989d |
- |
Baize, P. & Petit, M. |
1989A&AS...77..497B |
| Baz1989d |
|
A&AS 77, 497, 1989 |
|
| Luy1934c |
orb - |
Luyten, W.J. |
. |
| Luy1934c |
|
Pub. Univ. Minnesota Obs. 2, 23, 1934 |
|
| MEv2010 |
- |
MacEvoy, B. |
................... |
| MEv2010 |
|
private communication, 2010 (see http://www.handprint.com/ASTRO/index.html) |
|
| Mlk2012 |
not - |
Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. |
2012A&A...546A..69M |
| Mlk2012 |
|
A&A 546, A69, 2012 |
|
| Sca2002a |
orb - |
Scardia, M., Prieur, J.-L., Koechlin, L., & Aristidi, E. |
2002IAUDS.146....1S |
| Sca2002a |
|
Inf. Circ. 146, 1, 2002 |
|
| Vla1965 |
orb - |
Vlaicu, S. & Vasile, M. |
. |
| Vla1965 |
|
Studii Cerc. Astr. Seism. 10, 243, 1965 |
|
DISCOVERER
| idgroup |
discov |
author |
| 1 |
STF |
Struve, F.G.W. |
WDS HISTORIC DATA
| coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
| 03344+2428 |
STF 412 |
AB |
2006 |
286 |
355 |
0.7 |
6.60 |
6.86 |
A2V |
NOD |
033426.62+242752.1 |
| 03344+2428 |
STF 412 |
AB |
2008 |
292 |
355 |
0.7 |
6.60 |
6.86 |
A2V |
NOD |
033426.62+242752.1 |
| 03344+2428 |
STF 412 |
AB |
2009 |
293 |
354 |
0.7 |
6.60 |
6.86 |
A2V |
NOD |
033426.62+242752.1 |
| 03344+2428 |
STF 412 |
AB |
2010 |
297 |
354 |
0.7 |
6.60 |
6.86 |
A2V |
NOD |
033426.62+242752.1 |
| 03344+2428 |
STF 412 |
AB |
2012 |
298 |
353 |
0.7 |
6.60 |
6.86 |
A2V |
NOD |
033426.62+242752.1 |
| 03344+2428 |
STF 412 |
AB |
2014 |
292 |
353 |
0.8 |
6.60 |
6.86 |
A3V+A3V |
NOD |
033426.62+242752.1 |
| 03344+2428 |
STF 412 |
AB |
2015 |
297 |
352 |
0.8 |
6.60 |
6.86 |
A3V+A3V |
NO |
033426.62+242752.1 |
| 03344+2428 |
STF 412 |
AB |
2016 |
301 |
352 |
0.8 |
6.60 |
6.86 |
A3V+A3V |
NO |
033426.62+242752.1 |
| 03344+2428 |
STF 412 |
AB |
2017 |
302 |
354 |
0.8 |
6.60 |
6.86 |
A3V+A3V |
NO |
033426.62+242752.1 |
| 03344+2428 |
STF 412 |
AB |
2018 |
303 |
349 |
0.8 |
6.60 |
6.86 |
A3V+A3V |
NO |
033426.62+242752.1 |
| 03344+2428 |
STF 412 |
AB |
2019 |
311 |
351 |
0.8 |
6.60 |
6.86 |
A3V+A3V |
NO |
033426.62+242752.1 |
| 03344+2428 |
STF 412 |
AB |
2022 |
314 |
350 |
0.8 |
6.60 |
6.86 |
A3V+A3V |
NO |
033426.62+242752.1 |
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WDS 03344+2428 STF 412 AB : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 03344+2428 STF 412 AB : MEASURES
No records found.
WDS 03344+2428 : VIRTUAL EYEPIECE
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WDS 03344+2428 : ALADIN DSS IMAGE @
Error -22130
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.
