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Name
  V5977 Sgr  
AAVSO UID
000-BLW-201 (No observations)  
Constellation
Sagittarius Sequence
J2000.0
18 04 49.24 -27 52 16.8  (271.20517 -27.87133) Search nearby
B1950.0 18 01 40.17 -27 52 31.0
Proper motion
RA: 2.3 +/- 6.1 mas/yDec: 1.0 +/- 6.0 mas/ySource: UCAC4
Galactic coord. 3.050 -3.109
Other names

(Internal only)
2MASS J18044923-2752168 ASASSN-V J180449.24-275216.9 MACHO 104.20773.30
OGLE BUL-SC35 692686 USNO-A2.0 0600-30278134  
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Variability type
SR
Spectral type --
Mag. range
12.75 - 13.60 Rc
Discoverer S. Hümmerich and K. Bernhard
Epoch
13 Oct 1998 (HJD 2451100) Ephemeris
Outburst --
Period 869 d
Rise/eclipse dur. --
Remarks
Some references may be clicked to view in new window. Roll over index number to view submission details.
1 2019PZ.....39....3K P = 138d is superposed.
2 Otero, Sebastian Alberto Period in the table is for the Long Secondary Period (LSP). Short pulsation period = 138 d.
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References
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1 S. Hümmerich; K. Bernhard, 2016, Neue, pulsierende Rote Riesen mit langen
sekundären Perioden
BAV Rundbrief, 1/2016
2 E.V. Kazarovets, N.N. Samus, O.V. Durlevich et al., 2019, The 82nd
Name-List of Variable Stars. Part II – RA 18h to 20h and Novae
2019PZ.....39....3K
3 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
External Links
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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 = 7.68H = 6.46K = 5.97J - K = 1.71
AllWISE W1 = 5.62W2 = 5.80W3 = 4.53W4 = 3.48W1 - W2 = -0.18W3 - W4 = 1.05
Images
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Supporting Documents
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Revision History
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3 Otero, Sebastian Alberto 2020-05-24 18:51 UTC Epoch and position from the GCVS (November 2019 version).
2 Admin, VSX 2019-11-01 02:56 UTC Update from [2019PZ.....39....3K].
1 Otero, Sebastian Alberto 2016-02-16 08:12 UTC Initial submission.