|
|
|
 Revise  New Search
|
|
Latest Details
|
|
|
Log in to retrieve additional aliases from SIMBAD. |
|
|
| Name |
alf Com |
|
|
| AAVSO UID |
|
| Constellation |
|
| J2000.0 |
|
| B1950.0 |
13 07 33.36 +17 47 36.4 |
| Proper motion |
|
| Galactic coord. |
327.933 +79.489 |
Other names
(Internal only)
|
|
42 Com |
1RXS J130959.3+173136 |
AAVSO 1305+18 |
|
ADS 8804 |
Alpha Com |
BD+18 2697 |
|
CSV 102722 |
GJ 501.0 AB |
GSC 01454-01130 |
|
HD 114378 |
HD 114379 |
HIP 64241 |
|
HR 4968 |
HR 4969 |
NSV 6116 |
|
PPM 129630 |
SAO 100443 |
TYC 1454-1134-1 |
(Not logged in) Add name
|
| Variability type |
|
EA: |
|
|
| Spectral type |
F5V+F5V |
| Mag. range |
| 4.33 - ? V |
|
|
| Discoverer |
-- |
| Epoch |
|
| Outburst |
-- |
| Period |
9442.4 d (25.85 y) |
| Rise/eclipse dur. |
-- |
|
|
|
|
Remarks
|
|
|
Some references may be clicked to view in new window. Roll over index number to view submission details.
|
|
|
|
1 |
Otero, Sebastian Alberto
|
Previous predictions were based on wrong position angle measurements. The star is much likely an eclipsing binary. If a secondary eclipse occurs, the main predicted date of eclipse is 2461051 (2026 Jan. 11) (2015AJ....150..140M). |
|
2 |
Otero, Sebastian Alberto
|
No eclipses recorded by AAVSO observers at the expected date HJD 2457047.50. Orbital period 9485.68 d. |
|
3 |
Otero, Sebastian Alberto
|
Combined magnitude given in the table. A= 4.98V (B-V= 0.44); B= 5.18V (B-V= 0.47); sep. 0.0-0.7". |
|
4 |
GCVS Team |
ADS 8804 (5.05, 5.05, 0".2, 12deg, 1973; P=25.3 years); i=~90deg. Eclipses are possible. |
|
|
|
|
(Not logged in) Add remark
|
|
|
|
References
|
|
|
Click reference title/citation to view in new window. Roll over index number to view submission details.
|
|
|
|
1 |
Muterspaugh, M. W.; Wijngaarden, M. J. P.; Henrichs, H. F.; et al., 2015,
Predicting the α Comae Berenices Time of Eclipse: How 3 Ambiguous
Measurements out of 609 Caused a 26 Year Binary’s Eclipse to be Missed |
2015AJ....150..140M |
|
2 |
M.W. Muterspaugh et al., 2010, AJ, 140, 1623 |
2010AJ....140.1623M |
|
3 |
H.Haffner, Nbl AZ 2, 8, 1948. |
-- |
|
|
|
|
|
|
External Links
|
|
|
Links open in a new window. Not all links may be valid for this particular target.
|
|
|
|
Location
|
Go
|
Select a Location for more details.
|
|
|
|
|
Catalog Data
|
|
|
Information from selected catalogs obtained by cross-matching to 2 arc seconds using the CDS X-Match Service. These data may not be complete.
|
|
2MASS
|
J = 3.40 | H = 3.27 | K = 3.11 | J - K = 0.29 |
|
SDSS-DR12
|
u = 11.09 | g = 12.96 | r = 10.41 | i = 9.23 | z = 9.82 | u - g = -1.87 | r - i = 1.17 |
|
|
|
|
Images
|
|
|
Please review Digitized Sky Survey Acknowledgment and Copyright.
|
|
|
|
Image not downloaded. Click Retrieve Image to download and view. |
Retrieve image
|
|
|
|
|
Supporting Documents
|
|
|
|
|
There are currently no supporting documents on file for this star.
|
(Not logged in) Add document
|
|
|
|
|
Revision History
|
|
|
Currently approved revision is checked. Click revision number to view details of that revision.
|
|
|
|
|
