04325+1732 LEI 3 Aa,Ab
04h 32m 30.34s +17° 31' 40.4" P.A. 329.00 sep 0.3 mag 12.25,14.70 Sp M2.0+M2.0
| Coord 2000 |
04325+1732 |
|
Discov num |
LEI 3 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
04 32 30.34 +17 31 40.4 |
|
| Date first |
1990 |
|
Date last |
2012 |
|
Obs |
32 |
|
| Pa first |
9 |
|
Pa last |
328.9 |
|
P.A. Now (θ) |
328.9° |
|
| Sep first |
0.3 |
|
Sep last |
0.256 |
|
Sep. Now (ρ) |
0.256" |
|
| Mag pri |
12.25 |
|
Mag sec |
14.70 |
|
delta mag (ΔM) |
2.45 |
|
Spectral class |
M2.0+M2.0 (red/red) |
|
| Pri motion ra |
+017 |
|
Sec motion ra |
|
|
| Pri motion dec |
-020 |
|
Sec motion dec |
|
|
| Notes |
N
O
(See Notes, Orbital solution) |
|
This double is physical.
04325+1732 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
04 32 30 +17 31 40 |
LEI 3 Aa,Ab |
2012 |
32 |
329 |
0.3 |
12.25 |
14.70 |
2.45 |
Y |
<=== |
| Show |
|
|
04 32 30 +17 31 40 |
DIF 1 Ab1,2 |
2012 |
3 |
227 |
0.0 |
8.50 |
10.20 |
1.70 |
|
|
| Show |
|
|
04 32 30 +17 31 40 |
CHN 5 AB |
2009 |
11 |
186 |
10.1 |
12.24 |
17.10 |
4.86 |
|
|
| Show |
|
|
04 32 30 +17 31 40 |
HAT 8 AC |
2015 |
6 |
213 |
13.3 |
12.22 |
17.01 |
4.79 |
|
|
| Show |
|
|
04 32 30 +17 31 40 |
HAT 8 AD |
2015 |
6 |
45 |
16.8 |
12.22 |
16.86 |
4.64 |
|
|
| Show |
|
|
04 32 30 +17 31 31 |
LEI 3 Ba,Bb |
2006 |
9 |
135 |
1.5 |
17.11 |
19.94 |
2.83 |
|
|
Septuple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Taurus |
|
Tycho2 |
1270-00897-1 |
|
Gaia DR2 |
3314132593936244992 |
|
ORBITAL ELEMENTS
| Period (P) | 403y | ± 50 |
Periastron (T) | 2032.46y | ± 9.43 |
Semi-major axis (a) | 0.429a | |
| Eccentricity (e) | 0.44 | ± 0.03 |
Inclination (i) | 132.5° | ± 1.8 |
Longitude of periastron (ω) | 19° | ± 10 |
| Node (Ω) | 131° | ± 11 |
Notes | n | |
Reference | Koh2011 | |
| Equinox | | |
Last observation | 2009 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
171.4 |
0.246 |
| 2001 |
169.8 |
0.247 |
| 2002 |
168.1 |
0.247 |
| 2003 |
166.5 |
0.247 |
| 2004 |
164.9 |
0.248 |
| 2005 |
163.2 |
0.248 |
| 2006 |
161.6 |
0.248 |
| 2007 |
160.0 |
0.248 |
| 2008 |
158.4 |
0.249 |
| 2009 |
156.8 |
0.249 |
| 2010 |
155.2 |
0.249 |
| 2011 |
153.6 |
0.249 |
| 2012 |
152.0 |
0.250 |
| 2013 |
150.4 |
0.250 |
| 2014 |
148.8 |
0.250 |
| 2015 |
147.2 |
0.250 |
| 2016 |
145.6 |
0.250 |
| 2017 |
144.0 |
0.249 |
| 2018 |
142.3 |
0.249 |
| 2019 |
140.7 |
0.249 |
| 2020 |
139.1 |
0.248 |
| 2021 |
137.5 |
0.248 |
| 2022 |
135.9 |
0.247 |
| 2023 |
134.2 |
0.246 |
| 2024 |
132.6 |
0.245 |
| 2025 |
130.9 |
0.244 |
| 2026 |
129.2 |
0.243 |
| 2027 |
127.5 |
0.242 |
| 2028 |
125.8 |
0.241 |
| 2029 |
124.1 |
0.239 |
| 2030 |
122.3 |
0.237 |
|
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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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WDS 04325+1732 LEI 3 Aa,Ab : NOTES
| discov_num |
notes |
refcode |
| LEI 3 |
Aa,Ab: GG Tau. |
|
|
Tamazian (2002) solution includes mass determination based on an |
Tam2002 |
|
estimated distance. |
|
|
Aa,Ab: Kohler (2011) derives orbits both coplanar and not coplanar |
|
|
with the disk; only his "most plausible" orbit is tabulated in the |
|
|
orbit catalog. Elements are as follows: P = 403 +67/-32 y, a = 0".429, |
|
|
i = 132.5 +1.0/-2.5 deg, Omega = 131 +13/-8 deg, e = 0.44 +0.02/-0.03, |
|
|
T = 2463400 +1470/-5420, omega = 19 +9/-10. |
Koh2011 |
| CHN 5 |
AB: formerly known as LEI 3. |
|
| DIF 1 |
Ab1,Ab2: Di Folco et al. estimate spectral types for Ab1 and Ab2 of M2V |
|
|
and M3.5V, respectively. Assuming the close pair is coplanar with the |
|
|
outer diskof the system, the stars were separated by 5.1au in Dec 2012. |
DiF2014 |
REFERENCES
| refcode |
metd |
author |
reference |
| DiF2014 |
Am j |
Di Folco, E., Dutrey, A., Le Bouquin, J.-B., Lacour, S., Berger, J.-P., |
2014A&A...565L...2D |
| DiF2014 |
+A |
Kohler, R., Guilloteau, S., Pietu, V., Bary, J., Beck, T., Beust, H., & Pantin, E. |
|
| DiF2014 |
+K |
A&A 565, L2, 2014 |
|
| Koh2011 |
A j |
Koehler, R. |
2011A&A...530A.126L |
| Koh2011 |
+orb |
A&A 530, A126, 2011 |
|
| Tam2002 |
Si j |
Tamazian, V.S., Docobo, J.A., White, R.J., & Woitas, J. |
2002ApJ...578..925T |
| Tam2002 |
+orb |
ApJ 578, 925, 2002 |
|
DISCOVERER
| idgroup |
discov |
author |
| 1 |
CHN |
Cohen, M. & Kuhi, L.V. |
| 4 |
HAT |
Hartigan, P., Strom, K., & Strom, S. |
| 7 |
LEI |
Leinert, Ch., Jahreiss, H., & Haas, M. |
| 10 |
LEI |
Leinert, Ch., Haas, M., Allard, F., Wehrse, W., McCarthy, D.W., Jahreiss, H., & |
| 10 |
LEI |
Perrier, Ch. |
| 13 |
LEI |
Leinert, Ch., Zinnecker, H., Weitzel, N., Christou, J., Ridgway, S.T., |
| 13 |
LEI |
Jameson, R., Haas, M., & Lenzen, R. |
| 20 |
LEI |
Leinert, Ch., Jahreiss, H., Woitas, J., Zucker, S., Mazeh, T., Eckart, A., & |
| 20 |
LEI |
Koehler, R. |
WDS HISTORIC DATA
| coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
| 04325+1732 |
LEI 3 |
Aa,Ab |
2002 |
23 |
346 |
0.2 |
12.24 |
|
M3 |
NOD |
043230.34+173140.4 |
| 04325+1732 |
LEI 3 |
Aa,Ab |
2009 |
29 |
335 |
0.3 |
12.25 |
14.70 |
M2.0 M2.0 |
NOD |
043230.34+173140.4 |
| 04325+1732 |
LEI 3 |
Aa,Ab |
2012 |
31 |
329 |
0.3 |
12.25 |
14.70 |
M2.0 M2.0 |
NO |
043230.34+173140.4 |
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WDS 04325+1732 LEI 3 Aa,Ab : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 04325+1732 LEI 3 Aa,Ab : MEASURES
No records found.
WDS 04325+1732 : VIRTUAL EYEPIECE
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WDS 04325+1732 : ALADIN DSS IMAGE @
Error -22130
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.
