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Latest Details
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Name
  V1331 Aql  
AAVSO UID
000-BDF-678 (290 observations)  
Constellation
Aquila Sequence
J2000.0
18 44 12.79 -01 33 15.6  (281.05329 -1.55433) Search nearby
B1950.0 18 41 37.25 -01 36 21.9
Proper motion
RA: -0.248 +/- 0.074 mas/yDec: -5.806 +/- 0.045 mas/ySource: Gaia DR1
Galactic coord. 30.725 +0.898
Other names

(Internal only)
ASASSN-V J184412.89-013315.9 BD-01 3553 GDS_J1844127-013315
HD 173198 HIP 91910 SAO 142563
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Variability type
EB/KE:
Spectral type B1V
Mag. range
7.7 - 8.05 V
Discoverer --
Epoch
16 Jul 1975 (HJD 2442610.07) Ephemeris
Outburst --
Period 1.364209 d
Rise/eclipse dur. --
Remarks
Some references may be clicked to view in new window. Roll over index number to view submission details.
1 GCVS Team Min II 7.95. According to [J.A.de Freitas Pacheco, Ch.Ritte, A.Damineli Neto, IBVS N1306, 1977.] P = 1.364076d.
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References
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1 Bob Nelson's O-C files, 2016 --
2 K.K.Kwee, MS, 1978. --
External Links
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Location    Go   
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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 = 7.14H = 7.15K = 7.09J - K = 0.05
AllWISE W1 = 7.06W2 = 7.10W3 = 7.15W4 = 6.26W1 - W2 = -0.04W3 - W4 = 0.89
APASS-DR9 B = 8.06V = 7.72B - V = 0.34
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 18 44 12.79 -01 33 15.6 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
2 Admin, VSX 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.

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