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Latest Details
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Name
  sig Aql  
AAVSO UID
000-BCH-407 (35 observations)  
Constellation
Aquila Sequence
J2000.0
19 39 11.64 +05 23 52.0  (294.79850 +5.39778) Search nearby
B1950.0 19 36 43.59 +05 16 56.7
Proper motion
RA: 3.97 +/- 0.49 mas/yDec: -4.26 +/- 0.36 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 43.267 -8.071
Other names

(Internal only)
44 Aql 44 Aql ADS 12737
ADS 12737 A BD+05 4225 HD 185507
HIP 96665 HR 7474 SAO 124903
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Variability type
EA
Spectral type B3V+B3V
Mag. range
5.15 - 5.33 V
Discoverer --
Epoch
27 Jul 2022 (HJD 2459787.6908) Ephemeris
Outburst --
Period 1.950280 d
Rise/eclipse dur. 13%  (6.08 h)
Remarks
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1 Quadri, Ulisse Min II= 5.30 V.
2 GCVS Team ADS 12737 A (B 12.34m, 48", 328deg). Depth of Min II 0.1m. In [D.G.Monet, ApJ 237, 513, 1980.] P = 1.950271d is given according to spectroscopic data.
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References
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1 Samus, N. N.; Kazarovets, E. V.; Durlevich, O. V.; et al., 2017, General
Catalogue of Variable Stars: Version GCVS 5.1 (November 2019)		 2017ARep...61...80S
2 Bob Nelson's O-C files, 2016 --
3 Ricker, G. R.; et al., 2014, Transiting Exoplanet Survey Satellite (TESS) 2014SPIE.9143E..20R
4 C.C.Wylie, ApJ 56, 232, 1922. 1922ApJ....56..232W
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 = 5.30H = 5.37K = 5.28J - K = 0.03
AllWISE W1 = 5.13W2 = 4.97W3 = 5.09W4 = 3.41W1 - W2 = 0.16W3 - W4 = 1.68
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 19 39 11.64 +05 23 52.0 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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1 Phase plot Quadri, Ulisse 2022-10-04 13:05 UTC Phase plot with TESS and Hipparcos data.
Data of Tess and Hipparcos shiffted to V (Jhonson) magnitude.
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Revision History
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4 Quadri, Ulisse 2022-09-30 16:59 UTC Period, epoch and range derived from Hipparcos and GCPD data.
3 Otero, Sebastian Alberto 2020-06-29 23:32 UTC Type, period, epoch and eclipse duration from the GCVS (November 2019 version).
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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