AAVSO Home



Welcome, Guest. You are not logged in.
Log in
    Revise    New Search
Latest Details
Log in to retrieve additional aliases from SIMBAD.
Name
  FF Aql  
AAVSO UID
000-BCD-764 (4136 observations)  
Constellation
Aquila Sequence
J2000.0
18 58 14.75 +17 21 39.3  (284.56146 +17.36092) Search nearby
B1950.0 18 56 01.23 +17 17 32.5
Proper motion
RA: -0.103 +/- 0.028 mas/yDec: -9.329 +/- 0.035 mas/ySource: Gaia DR1
Galactic coord. 49.205 +6.363
Other names

(Internal only)
AAVSO 1853+17 ADS 11884 A BD+17 3799
GSC 01589-02551 HD 176155 HIP 93124
HR 7165 SAO 104296  
(Not logged in)  Add name
Variability type
DCEPS
Spectral type F5Ia-F8Ia
Mag. range
5.18 - 5.51 V
Discoverer --
Epoch
31 Jul 1984 (HJD 2445912.675) Ephemeris
Outburst --
Period 4.470848 d
Rise/eclipse dur. 45%
Remarks
Some references may be clicked to view in new window. Roll over index number to view submission details.
1 Billiaert, Bruno Possible quadruple system. Spectroscopic A9/F3V companion. P= 1438.76 d.
2 Otero, Sebastian Alberto Not an overtone cepheid from its absolute magnitude (-3.05 +/-0.15). Secondary is F1V.
3 GCVS Team ADS 11884 A (B 10.37m, 7", 141deg). SB1 (P = 1435d).
(Not logged in)  Add remark
References
Click reference title/citation to view in new window. Roll over index number to view submission details.
1 -- astro-ph/0612465
2 Breitfelder, J.; et al., 2016, Observational calibration of the projection
factor of Cepheids. II. Application to nine Cepheids with HST/FGS parallax
measurements
2016arXiv160104727B
3 Berdnikov, L. N.; Turner, D. G.; Henden, A. A., 2014, FF Aql BV light
curves
2014yCat..80910299B
4 Benedict, G. F.; et al., 2007, Hubble Space Telescope Fine Guidance Sensor
Parallaxes of Galactic Cepheid Variable Stars: Period-Luminosity Relations
2007AJ....133.1810B
5 L.Szabados, Bud Mitt N70, 1977. 1977CoKon..70....1S
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 = 4.03H = 3.74K = 3.52J - K = 0.51
AllWISE W1 = 3.51W2 = 2.94W3 = 3.42W4 = 3.38W1 - W2 = 0.57W3 - W4 = 0.05
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.
3 Billiaert, Bruno 2016-02-03 08:11 UTC Period and epoch from 2016arXiv160104727B. Type, rise duration and range from 2014yCat..80910299B and HIPPARCOS data.
2 Otero, Sebastian Alberto 2007-02-25 14:23 UTC --
1 Admin, VSX 2005-12-17 20:33 UTC Initial database population.