21568+0017 LAW 29 Aa,Ab
21h 56m 48.31s +00° 17' 01.0" P.A. 126.00 sep 0.1 mag 16.61, Sp M2.5+M3.5
Coord 2000 |
21568+0017 |
|
Discov num |
LAW 29 |
|
Comp |
Aa,Ab |
|
Coord arcsec 2000 |
21 56 48.31 +00 17 01.0 |
|
Date first |
2008 |
|
Date last |
2008 |
|
Obs |
2 |
|
Pa first |
126 |
|
Pa last |
126 |
|
P.A. Now (θ) |
126° |
|
Sep first |
0.1 |
|
Sep last |
0.13 |
|
Sep. Now (ρ) |
0.13" |
|
Mag pri |
16.61 |
|
Mag sec |
|
|
delta mag (ΔM) |
|
|
Spectral class |
M2.5+M3.5 (red/red) |
|
Pri motion ra |
-030 |
|
Sec motion ra |
|
|
Pri motion dec |
-058 |
|
Sec motion dec |
|
|
Notes |
R
(Red magnitudes) |
|
Nature of this double is uncertain.
21568+0017 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
|
|
21 56 48 +00 17 01 |
LAW 29 Aa,Ab |
2008 |
2 |
126 |
0.1 |
16.61 |
|
|
|
<=== |
Show |
|
|
21 56 48 +00 17 01 |
LAW 29 AB |
2016 |
9 |
249 |
19.6 |
16.61 |
18.84 |
2.23 |
|
|
Show |
|
|
21 56 47 +00 16 54 |
LAW 29 Ba,Bb |
2008 |
2 |
149 |
0.1 |
18.84 |
|
|
|
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Quadruple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Constellation |
Aquarius |
|
Gaia DR2 |
2681344406401415680 |
|
WDS 21568+0017 LAW 29 Aa,Ab : NOTES
No records found.
REFERENCES
refcode |
metd |
author |
reference |
Law2006 |
Ss - |
Law, N.M., Hodgkin, S.T., & Mackay, C.D. |
2006MNRAS.368.1917L |
Law2006 |
|
MNRAS 368, 1917, 2006 |
|
Law2008 |
Ss - |
Law, N.M., Hodgkin, S.T., & Mackay, C.D. |
2008MNRAS.384..150L |
Law2008 |
|
MNRAS 384, 150, 2008 |
|
Law2008 |
|
All measures of known pairs in Law2008 appear to be off by 90 (or 270) degrees. |
|
Law2008 |
|
Corrected and N code code added to measure. |
|
Law2010 |
Ag j |
Law, N.M., Dhital, S., Kraus, A., Stassun, K.G. & West, A.A. |
2010ApJ...720.1727L |
Law2010 |
+Es |
ApJ 720, 1727, 2010 |
|
Law2010 |
+C |
|
|
WDS HISTORIC DATA
coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
21568+0017 |
LAW 29 |
Aa,Ab |
2008 |
1 |
126 |
0.1 |
16.50 |
|
M2.5+M3.5 |
|
215648.32+001701.2 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 21568+0017 LAW 29 Aa,Ab : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 21568+0017 LAW 29 Aa,Ab : MEASURES
No records found.
WDS 21568+0017 : VIRTUAL EYEPIECE
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
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WDS 21568+0017 : ALADIN DSS IMAGE @
Error -22130
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.