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Details for Revision 2
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Name
  V0846 Aql  
AAVSO UID
000-BDF-231 (No observations)  
Constellation
Aquila Sequence
J2000.0
19 13 36.37 -01 55 00.7  (288.40154 -1.91686) Search nearby
B1950.0 19 11 00.47 -02 00 11.7
Galactic coord. 33.752 -5.806
Other names

(Internal only)
2MASS J19133634-0155003 ASAS J191336-0155.0 GSC2.3 S9LB001378
IRAS 19110-0200 NSVS 13991831 SON 4385
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Variability type
M
Spectral type --
Mag. range
13.3 - <16.1 p
Discoverer --
Epoch
14 Jul 1939 (HJD 2429459) Ephemeris
Outburst --
Period 170 d
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto Identification based on the chart in MVS N305 (1957) looks correct but there is no mira with range 13.3 - <16.1 p at that position. 2MASS magnitudes are too faint for a red star with V= 12.6 (J= 10.18; K= 8.80). J-K is 1.38 but B-V from APASS is only 1.09 (infrared excess). Some discrepant magnitudes in the literature: V= 14.45 (YB6); V= 15.12 (NPM2). Magnitudes contaminated by 2MASS J19133655-0155059 (V= 16.6 in YB6; J-K= 0.91; sep. 6"). Range has been corrected. ASAS-3 data confirm there is no mira at this position, but a star showing semiregular pulsations. Sonneberg plates investigated by Klaus Häussler show a long-term mean magnitude change consistent with the larger range.
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References
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1 S. Huemmerich, K. Haeussler, S.A. Otero, 2014, PZP 14, 13 2014PZP....14...13H
2 Wozniak, P.R., et al., 2004, Northern Sky Variability Survey: Public Data
Release
2004AJ....127.2436W
3 Pojmanski, G., 2002, The All Sky Automated Survey 2002AcA....52..397P
4 MVS N305, 1957. --
5 E.Ahnert-Rohlfs, W.Goetz, VSS 2, N2, 1954. --
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Supporting Documents
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2 JD light curve Otero, Sebastian Alberto 2013-05-20 09:58 UTC Light curve with magnitudes from Sonneberg plates normalized to the V scale and also including recent NSVS, ASAS-3 and APASS data.
1 Phase plot Otero, Sebastian Alberto 2013-05-20 09:55 UTC Phase plot showing ASAS-3, NSVS and APASS data.
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Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
4 Otero, Sebastian Alberto 2013-05-20 09:58 UTC Reference and JD light curve added.
3 Otero, Sebastian Alberto 2013-05-20 09:55 UTC Type, period, epoch and range from ASAS-3, NSVS, APASS and Sonneberg plates (reduced by Klaus Häussler). UCAC4 position.
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.