20216+1930 COU 327 AB,C (HD 193797)
20h 21m 35.69s +19° 29' 40.1" P.A. 132.00 sep 4.1 mag 8.41,11.97 Sp F8 dist. 188.68 pc (615.47 l.y.)
| Coord 2000 |
20216+1930 |
|
Discov num |
COU 327 |
|
Comp |
AB,C |
|
Coord arcsec 2000 |
20 21 35.69 +19 29 40.1 |
|
| Date first |
1968 |
|
Date last |
2011 |
|
Obs |
7 |
|
| Pa first |
126 |
|
Pa last |
132.2 |
|
P.A. Now (θ) |
132.2° |
|
| Sep first |
4.0 |
|
Sep last |
4.088 |
|
Sep. Now (ρ) |
4.088" |
|
| Mag pri |
8.41 |
|
Mag sec |
11.97 |
|
delta mag (ΔM) |
3.56 |
|
Spectral class |
F8 (yellow-white) |
|
| Pri motion ra |
+008 |
|
Sec motion ra |
+009 |
|
| Pri motion dec |
+002 |
|
Sec motion dec |
+004 |
|
| Notes |
N
(See Notes) |
|
rPM=0.227 (< 0.3, Physical double)
This double is physical.
20216+1930 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
106021 |
20 21 36 +19 29 40 |
COU 327 AB |
2019 |
24 |
245 |
0.2 |
9.10 |
9.10 |
0.00 |
Y |
|
| Show |
HD 193797 |
106021 |
20 21 36 +19 29 40 |
COU 327 AB,C |
2011 |
7 |
132 |
4.1 |
8.41 |
11.97 |
3.56 |
|
<=== |
Triple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 193797 |
|
Constellation |
Delphinus |
|
SAO |
106021 |
|
HIP |
100397 |
|
| Tycho2 |
1639-02397-1 |
|
Gaia DR2 |
1816309371324521728 |
|
HD |
193797 |
|
BD |
BD+19 4380 |
|
| Distance |
188.68 |
|
Distance ly |
615.47 |
|
WDS 20216+1930 COU 327 AB,C (HD 193797) : NOTES
| discov_num |
notes |
refcode |
| COU 327 |
Measures by ISM are anomalous. A preliminary visual orbit gives: |
Ism1992 |
|
P =35y, a = 0.16", motion direct. |
|
|
One component is a spectroscopic binary, P = 70.53d. |
|
|
Systemic mass is estimated at 3.0 +/- 0.7 Msun, assuming an estimated |
|
|
parallax of 8 +/- 2 mas. |
Doc2008a |
REFERENCES
| refcode |
metd |
author |
reference |
| Doc2008a |
S j |
Docobo, J.A., Tamazian, V.S., Andrade, M., Ling, J.F., Balega, Y.Y., |
2008AJ....135.1803D |
| Doc2008a |
+orb |
Lahulla, J.F., & Maximov, A. |
|
| Doc2008a |
|
AJ 135, 1803, 2008 |
|
| Ism1992 |
Ig u |
Ismailov, R.M. |
1992A&AS...96..375I |
| Ism1992 |
|
A&AS 96, 375, 1992 |
|
DISCOVERER
| idgroup |
discov |
author |
| 1 |
COU |
Couteau, P. |
WDS HISTORIC DATA
| coord_2000 |
discov_num |
comp |
epoch |
obs |
pa |
sep |
mag_pri |
mag_sec |
spectr |
notes |
coord_arcsec_2000 |
| 20216+1930 |
COU 327 |
AB,C |
2007 |
5 |
131 |
4.0 |
8.41 |
11.97 |
|
N D |
202135.69+192940.1 |
| 20216+1930 |
COU 327 |
AB,C |
2010 |
6 |
132 |
4.1 |
8.41 |
11.97 |
F8 |
N |
202135.69+192940.1 |
| 20216+1930 |
COU 327 |
AB,C |
2011 |
7 |
132 |
4.1 |
8.41 |
11.97 |
F8 |
N |
202135.69+192940.1 |
If you need more information about this double, apply for a
data request form to the WDS.
WDS 20216+1930 COU 327 AB,C (HD 193797) : VISUAL OBSERVATIONS REPORTS
No records found.
WDS 20216+1930 COU 327 AB,C (HD 193797) : MEASURES
No records found.
WDS 20216+1930 (HD 193797) : 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 20216+1930 (HD 193797) : ALADIN DSS IMAGE @
Error -22130
Not valid ID.
Error -22130
Not valid ID.
Error -27220
Not valid ID.
