22385-1519 BLA 10 AB
22h 38m 33.58s -15° 17' 59.8" P.A. 357.00 sep 0.4 mag 12.20,12.90 Sp M5.0Ve
| Coord 2000 |
22385-1519 |
|
Discov num |
BLA 10 |
|
Comp |
AB |
|
Coord arcsec 2000 |
22 38 33.58 -15 17 59.8 |
|
| Date first |
1985 |
|
Date last |
2021 |
|
Obs |
51 |
|
| Pa first |
0 |
|
Pa last |
357.3 |
|
P.A. Now (θ) |
357.3° |
|
| Sep first |
0.4 |
|
Sep last |
0.406 |
|
Sep. Now (ρ) |
0.406" |
|
| Mag pri |
12.20 |
|
Mag sec |
12.90 |
|
delta mag (ΔM) |
0.7 |
|
Spectral class |
M5.0Ve (red) |
|
| Pri motion ra |
+231 |
|
Sec motion ra |
|
|
| Pri motion dec |
+230 |
|
Sec motion dec |
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|
| Notes |
N
O
P
(See Notes, Orbital solution, 100-year proper motion) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
ORBITAL ELEMENTS
| Period (P) | 822.6d (2.25y) | ± 0.2 |
Periastron (T) | 51810.3m (2000.729y) | ± 0.4 |
Semi-major axis (a) | 0.3473a | ± 0.0005 |
| Eccentricity (e) | 0.439 | ± 0.001 |
Inclination (i) | 112.6° | ± 0.1 |
Longitude of periastron (ω) | 158.7° | ± 0.3 |
| Node (Ω) | 341.2° | ± 0.1 |
Notes | n | |
Reference | Sgr2000 | |
| Equinox | | |
Last observation | 1999 | |
Grade | 2 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000-01-01 |
338.1 |
0.450 |
| 2001-01-01 |
112.5 |
0.139 |
| 2002-01-01 |
345.5 |
0.486 |
| 2003-01-01 |
166.2 |
0.191 |
| 2004-01-01 |
353.1 |
0.445 |
| 2005-01-01 |
287.0 |
0.122 |
| 2006-01-01 |
4.0 |
0.338 |
| 2007-01-01 |
327.6 |
0.331 |
| 2008-01-01 |
30.0 |
0.189 |
| 2009-01-01 |
338.4 |
0.453 |
| 2010-01-01 |
115.5 |
0.142 |
| 2011-01-01 |
345.8 |
0.486 |
| 2012-01-01 |
167.8 |
0.188 |
| 2013-01-01 |
353.4 |
0.442 |
| 2014-01-01 |
290.7 |
0.129 |
| 2015-01-01 |
4.5 |
0.334 |
| 2016-01-01 |
328.1 |
0.336 |
| 2017-01-01 |
31.7 |
0.184 |
| 2018-01-01 |
338.7 |
0.456 |
| 2019-01-01 |
118.3 |
0.145 |
| 2020-01-01 |
346.0 |
0.485 |
| 2021-01-01 |
169.5 |
0.184 |
| 2022-01-01 |
353.7 |
0.439 |
| 2023-01-01 |
294.0 |
0.137 |
| 2024-01-01 |
5.1 |
0.329 |
| 2025-01-01 |
328.6 |
0.342 |
| 2026-01-01 |
33.5 |
0.179 |
| 2027-01-01 |
338.9 |
0.458 |
| 2028-01-01 |
121.1 |
0.148 |
| 2029-01-01 |
346.3 |
0.485 |
| 2030-01-01 |
171.3 |
0.180 |
|
|
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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SUSPECTED ORBITAL ELEMENTS
| Identifier | 22385-1519 |
| coord_arcsec_2000 | 223832.26-151818.8 |
| Period (P) | 3.786516d | ± 0.000005 |
Periastron (T) | 50799.808m (1997.962y) | ± 0 |
Semi-major axis (a) | | |
| Eccentricity (e) | 0 | |
Inclination (i) | 116.5° | ± 0.5 |
Longitude of periastron (ω) | ° | |
| Node (Ω) | ° | |
Notes | n | |
Reference | Sgr2000 | |
| Equinox | | |
Last observation | | |
Grade | 7 | (1=Definitive, 9=Indet.) |
Not enought orbital data to create a graph.
WDS 22385-1519 BLA 10 AB : NOTES
| discov_num |
notes |
refcode |
| BLA 10 |
L 789-6. GJ 866. One of the nearest stars, proper motion +2340 +2270. |
|
|
Leinert et al. (1990) derive a combined spectroscopic/interferometric/ |
Lei1990 |
|
photometric solution, yielding masses and temperatures, etc. |
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Adopted magnitude differences are as follows: |
|
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0.20 +/- 0.13 mag 845 nm |
|
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0.63 +/- 0.08 mag 1250 nm |
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0.63 +/- 0.06 mag 1650 nm |
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0.63 +/- 0.06 mag 2250 nm |
|
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0.63 +/- 0.10 mag 3800 nm |
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0.55 +/- 0.36 mag 4800 nm |
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Very low mass triple. AC pair is 3.8-day SB orbiting B component. |
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Combined spectroscopic/interferometric/parallax orbit given for AC,B |
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by Delfosse et al. (1999). Resulting masses are placed on M-L diagram. |
Del1999b |
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Combined solution from astrometry, spectroscopy, and parallax derived |
|
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by Segransan et al. (2000). Solution yields mass and orbital parallax |
Sgr2000 |
|
determination. |
|
REFERENCES
| refcode |
metd |
author |
reference |
| Del1999b |
orb - |
Delfosse, X., Forveille, T., Udry, S., Beuzit, J.-L., Mayor, M., & Perrier, C. |
1999A&A...350L..39D |
| Del1999b |
|
A&A 350, L39, 1999 |
|
| Lei1990 |
Si j |
Leinert, Ch., Haas, M., Allard, F., Wehrse, W., McCarthy, D.W., Jahreiss, H., & |
1990A&A...236..399L |
| Lei1990 |
|
Perrier, Ch. |
|
| Lei1990 |
+orb |
A&A 236, 399, 1990 |
|
| Sgr2000 |
A j |
Segransan, D., Delfosse, X., Forveille, T., Beuzit, J.-L., Udry, S., Perrier, C., |
2000A&A...364..665S |
| Sgr2000 |
+orb |
& Mayor, M. |
|
| Sgr2000 |
|
A&A 364, 665, 2000 |
|
DISCOVERER
| idgroup |
discov |
author |
| 1 |
BLA |
Blazit, A., Bonneau, D., Koechlin, L. & Labeyrie, A. |
WDS HISTORIC DATA
| coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
| 22385-1519 |
BLA 10 |
AB |
2010 |
45 |
358 |
0.4 |
12.20 |
12.90 |
M5.0Ve |
NO P |
223833.58-151759.8 |
| 22385-1519 |
BLA 10 |
AB |
2019 |
47 |
350 |
0.5 |
12.20 |
12.90 |
M5.0Ve |
NO P |
223833.58-151759.8 |
| 22385-1519 |
BLA 10 |
AB |
2020 |
48 |
246 |
0.1 |
12.20 |
12.90 |
M5.0Ve |
NO P |
223833.58-151759.8 |
| 22385-1519 |
BLA 10 |
AB |
2021 |
51 |
357 |
0.4 |
12.20 |
12.90 |
M5.0Ve |
NO P |
223833.58-151759.8 |
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WDS 22385-1519 BLA 10 AB : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 22385-1519 BLA 10 AB : MEASURES
No records found.
WDS 22385-1519 : VIRTUAL EYEPIECE
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WDS 22385-1519 : ALADIN DSS IMAGE @
Error -22130
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.
