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  RR Aql  
000-BCJ-870 (5251 observations)  
Aquila Sequence
19 57 36.06 -01 53 11.3  (299.40025 -1.88647) Search nearby
B1950.0 19 55 00.43 -02 01 15.9
Proper motion
RA: -25.12 +/- 4.46 mas/yDec: -49.14 +/- 3.23 mas/ySource: F. Van Leeuwen, 2007
Galactic coord. 38.917 -15.560
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
AAVSO 1952-02 ASAS J195736-0153.2 HD 188915
HIP 98220 IRC +00458 RAFGL 2479
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Variability type
Spectral type M6e-M9
Mag. range
7.8 V - 15.00 V
Discoverer --
10 Jan 2009 (HJD 2454842.0) Ephemeris
Outburst --
Period 396.1 d
Rise/eclipse dur. 30%  (119 d)
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1 GCVS Team Maser H2O, OH, SiO.
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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)
2 G.Pojmanski, Acta Astronomica 52, 397, 2002. 2002AcA....52..397P
3 T. Karlsson, Maxima of Mira stars --
4 General Catalogue of Variable Stars, 4th Edition, Volumes I-III, P.N.
Kholopov et al.
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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 = 2.46H = 1.49K = 0.84J - K = 1.62
AllWISE W3 = -1.94W4 = -2.87W3 - W4 = 0.93
APASS-DR9 B = 11.48g' = 10.71
Please review Digitized Sky Survey Acknowledgment and Copyright.
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Supporting Documents
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 Percy's Unusual LPVs
Revision History
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3 Otero, Sebastian Alberto 2020-05-22 23:37 UTC Period, epoch, rise duration and maximum magnitude from the GCVS (November 2019 version).
2 Admin, VSX 2010-01-04 23:43 UTC Position updated from the GCVS version of November 2009.
1 Admin, VSX 2005-12-17 20:33 UTC Initial upload.