13454+2857 LAW 20 AB
13h 45m 25.97s +28° 57' 23.5" P.A. 89.00 sep 20.3 mag 15.00,16.30 Sp M2.5+M3.0
| Coord 2000 |
13454+2857 |
|
Discov num |
LAW 20 |
|
Comp |
AB |
|
Coord arcsec 2000 |
13 45 25.97 +28 57 23.5 |
|
| Date first |
1950 |
|
Date last |
2015 |
|
Obs |
12 |
|
| Pa first |
89 |
|
Pa last |
89.3 |
|
P.A. Now (θ) |
89.3° |
|
| Sep first |
20.6 |
|
Sep last |
20.323 |
|
Sep. Now (ρ) |
20.323" |
|
| Mag pri |
15.00 |
|
Mag sec |
16.30 |
|
delta mag (ΔM) |
1.3 |
|
Spectral class |
M2.5+M3.0 (red/red) |
|
| Pri motion ra |
-080 |
|
Sec motion ra |
-083 |
|
| Pri motion dec |
+034 |
|
Sec motion dec |
+034 |
|
| Notes |
V
(Proper motion indicates physical) |
|
rPM=0.033 (< 0.3, Physical double)
This double is physical.
13454+2857 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
13 45 26 +28 57 24 |
LAW 20 Aa,Ab |
2018 |
3 |
69 |
0.1 |
14.58 |
|
|
|
|
| Show |
|
|
13 45 26 +28 57 24 |
LAW 20 AB |
2015 |
12 |
89 |
20.3 |
15.00 |
16.30 |
1.30 |
|
<=== |
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Canes Venatici |
|
Gaia DR2 |
1454873721451804928 |
|
WDS 13454+2857 LAW 20 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 |
| 13454+2857 |
LAW 20 |
AB |
2009 |
1 |
89 |
21.2 |
15.00 |
16.30 |
M2.5+M3.0 |
|
134535.97+285723.5 |
| 13454+2857 |
LAW 20 |
AB |
2015 |
5 |
89 |
20.3 |
15.00 |
16.30 |
M2.5+M3.0 |
V |
134525.97+285723.5 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 13454+2857 LAW 20 AB : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 13454+2857 LAW 20 AB : MEASURES
No records found.
WDS 13454+2857 : VIRTUAL EYEPIECE
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Pass over with the mouse cursor to display the catalog designation.
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|
WDS 13454+2857 : ALADIN DSS IMAGE @
Error -22130
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.
