15554+2932 HO 399 (HD 142796)
15h 55m 25.81s +29° 32' 13.5" P.A. 116.00 sep 3.6 mag 7.68,10.49 Sp A2V dist. 154.8 pc (504.96 l.y.)
| Coord 2000 |
15554+2932 |
|
Discov num |
HO 399 |
|
Comp |
|
|
Coord arcsec 2000 |
15 55 25.81 +29 32 13.5 |
|
| Date first |
1891 |
|
Date last |
2019 |
|
Obs |
31 |
|
| Pa first |
118 |
|
Pa last |
116.4 |
|
P.A. Now (θ) |
116.4° |
|
| Sep first |
2.3 |
|
Sep last |
3.61 |
|
Sep. Now (ρ) |
3.61" |
|
| Mag pri |
7.68 |
|
Mag sec |
10.49 |
|
delta mag (ΔM) |
2.81 |
|
Spectral class |
A2V (white) |
|
| Pri motion ra |
-008 |
|
Sec motion ra |
-008 |
|
| Pri motion dec |
+010 |
|
Sec motion dec |
+009 |
|
| Notes |
|
|
rPM=0.078 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 142796 |
|
Constellation |
Corona Borealis |
|
SAO |
84078 |
|
HIP |
77975 |
|
| Tycho2 |
2040-00167-1 |
|
Gaia DR2 |
1320100430841116672 |
|
HD |
142796 |
|
ADS |
9844 |
|
| BD |
BD+29 2739 |
|
Distance |
154.8 |
|
Distance ly |
504.96 |
|
WDS 15554+2932 HO 399 (HD 142796) : NOTES
No records found.
REFERENCES
| refcode |
metd |
author |
reference |
| Ho_1883 |
Ma j |
Hough, G.W. |
1883MNRAS..43..371H |
| Ho_1883 |
|
MNRAS 43, 371, 1883 (data also in Ho_1890) |
1890AN....125....1H |
| Ho_1884 |
Ma j |
Hough, G.W. |
1884MNRAS..44..365H |
| Ho_1884 |
|
MNRAS 44, 365, 1884 (data also in Ho_1890) |
1890AN....125....1H |
| Ho_1885 |
Ma j |
Hough, G.W. |
1885MNRAS..45..417H |
| Ho_1885 |
|
MNRAS 45, 417, 1885 (data also in Ho_1890) |
1890AN....125....1H |
| Ho_1886 |
Ma j |
Hough, G.W. |
1886MNRAS..46..393H |
| Ho_1886 |
|
MNRAS 46, 393, 1886 (data also in Ho_1890) |
1890AN....125....1H |
| Ho_1887 |
Ma j |
Hough, G.W. |
1887AN....116..273H |
| Ho_1887 |
|
AN 116, 273, 1887 |
|
| Ho_1890 |
Ma j |
Hough, G.W. |
1890AN....125....1H |
| Ho_1890 |
|
AN 125, 1, 1890 |
|
| Ho_1890b |
Ma j |
Hough, G.W. |
1890AJ......9..177H |
| Ho_1890b |
|
AJ 9, 177, 1890 (some data also in Ho_1890 or Ho_1894b) |
1890AN....125....1H |
| Ho_1894a |
Ma - |
Hough, G.W. |
1894MNRAS..54..251H |
| Ho_1894a |
|
MNRAS 54, 251, 1894 |
|
| Ho_1894b |
Ma j |
Hough, G.W. (HO 304 - 490) |
1894AN....135..281H |
| Ho_1894b |
|
AN 135, 281, 1894 |
|
| Ho_1894c |
Ma - |
Hough, G.W. (measure by Dembowski, H.) |
1894AN....135..281H |
| Ho_1894c |
|
AN 135, 281, 1894 |
|
| Ho_1899a |
Ma j |
Hough, G.W. |
1899AN....149..65H |
| Ho_1899a |
|
AN 149, 65, 1899 |
|
| Ho_1899b |
Ma - |
Hough, G.W. (measure by Burnham, S.W.) |
1899AN....149..65H |
| Ho_1899b |
|
AN 149, 65, 1899 |
|
| Ho_1907 |
Ma - |
Hough, G.W. |
1907PFAO....3c...1D |
| Ho_1907 |
|
Pub. Univ. Penn. 3, Pt. 3, 1907 (measures sent to Doolittle) |
|
| Ho_1932A |
Ma - |
Hough, G.W. |
1932QB821.A43...... |
| Ho_1932A |
|
cited in ADS, 1932 (unpublished measures sent to Aitken in manuscript by Fox) |
|
WDS HISTORIC DATA
| coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
| 15554+2932 |
HO 399 |
|
2002 |
24 |
118 |
3.6 |
7.68 |
10.49 |
A2V |
|
155525.81+293213.5 |
| 15554+2932 |
HO 399 |
|
2009 |
25 |
117 |
3.5 |
7.68 |
10.49 |
A2V |
|
155525.81+293213.5 |
| 15554+2932 |
HO 399 |
|
2015 |
27 |
117 |
3.7 |
7.68 |
10.49 |
A2V |
|
155525.81+293213.5 |
| 15554+2932 |
HO 399 |
|
2019 |
30 |
116 |
3.6 |
7.68 |
10.49 |
A2V |
|
155525.81+293213.5 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 15554+2932 HO 399 (HD 142796) : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 15554+2932 HO 399 (HD 142796) : MEASURES
No records found.
WDS 15554+2932 (HD 142796) : VIRTUAL EYEPIECE
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.
|
|
WDS 15554+2932 (HD 142796) : ALADIN DSS IMAGE @
Error -22130
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.
