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Details for Revision 5
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Name
  V3831 Sgr  
AAVSO UID
000-BFJ-166 (No observations)  
Constellation
Sagittarius Sequence
J2000.0
18 28 52.62 -21 59 42.8  (277.21925 -21.99522) Search nearby
B1950.0 18 25 52.08 -22 01 42.2
Galactic coord. 10.821 -5.145
Other names

(Internal only)
2MASS J18285264-2159428 GSC2.3 SA7S068286 Gaia DR2 4090066848905042048
Gaia DR3 4090066848905042048 OGLE BLG305.8.62759 OGLE BLG558.13.54457
OGLE-BLG-RRLYR-61338 UCAC4 341-148615 USNO-B1.0 0680-0750083
[BTW2011] 0308451-026394    
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Variability type
RRAB
Spectral type --
Mag. range
14.57 (0.87) r
Discoverer --
Epoch
09 Dec 2014 (HJD 2457000.721) Ephemeris
Outburst --
Period 0.5392981645 d  (12.94315595 h)
Rise/eclipse dur. --
Remarks
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1 Otero, Sebastian Alberto Chart in 1972IBVS..660....1H is wrong and points to the star at 18 28 51.75 -21 59 44.5 (J2000.0), which is constant at V= 15.96.
2 Otero, Sebastian Alberto VSP Note: 19.8 Vmag. star 1.1" to the S, 18.5 Vmag. star 2.4" to the ENE, 16.8 Vmag. star 3.4" to the NNE, 18.1 Vmag. star 5.7" to the SSW and 18.7 Vmag. star 5.8" to the SW.
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References
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1 Gaia collaboration; et al., 2022, Gaia Data Release 3 (Gaia DR3) Part 1
Main source		 2022yCat.1355....0G
2 Soszyński, I.; et al., 2019, Over 78 000 RR Lyrae Stars in the
Galactic Bulge and Disk from the OGLE Survey		 2019AcA....69..321S
3 Gaia Collaboration; et al., 2018, Gaia Data Release 2. Summary of the
contents and survey properties		 2018A&A...616A...1G
4 B. Sesar, N. Hernitschek, S. Mitrovic, et al., 2017, Machine-learned
Identification of RR Lyrae Stars from Sparse, Multi-band Data: The PS1
Sample		 2017AJ....153..204S
5 B. Sesar, N. Hernitschek, S. Mitrovic, et al., 2017, Machine-learned
Identification of RR Lyrae Stars from Sparse, Multi-band Data: The PS1
Sample		 2017AJ....153..204S
6 Buie, M. W.; et al., 2011, A Large and Faint Photometric Catalog on the
Ecliptic		 2011ApJS..194...40B
7 D.Hoffleit, IBVS N660, 1972. 1972IBVS..660....1H
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Supporting Documents
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Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
7 Otero, Sebastian Alberto 2024-11-01 05:08 UTC Period and epoch from 2019AcA....69..321S. Type and rise duration from OGLE data. Range derived from Gaia DR3 data.
6 Otero, Sebastian Alberto 2020-05-15 00:39 UTC Gaia DR2 position.
5 Admin, VSX 2018-12-21 03:11 UTC Update from [2017AJ....153..204S].
4 Otero, Sebastian Alberto 2015-08-28 02:16 UTC Position corrected.
3 Otero, Sebastian Alberto 2015-08-28 01:49 UTC Type and range from 2011ApJS..194...40B. 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.

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