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Name
  V0646 Sct  
AAVSO UID
000-BNM-013 (46 observations)  
Constellation
Scutum Sequence
J2000.0
18 41 25.32 -04 20 32.0  (280.35550 -4.34222) Search nearby
B1950.0 18 38 46.56 -04 23 27.1
Proper motion
RA: 3.6 +/- 7.9 mas/yDec: 13.2 +/- 8.9 mas/ySource: UCAC4
Galactic coord. 27.927 +0.243
Other names

(Internal only)
2MASS J18412530-0420320 ASAS J184125-0420.5 DO 5003
EIC 2349 GDS_J1841253-042031 GSC 05121-00786
IRAS 18387-0423 IRC +00363 IRC 00363
NSV 11202 RAFGL 2227 [A64] Red -04 89
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Variability type
SRB
Spectral type M4/5
Mag. range
10.4 - 12.8 V
Discoverer --
Epoch
27 Apr 2005 (HJD 2453488) Ephemeris
Outburst --
Period 570 d
Rise/eclipse dur. --
Remarks
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1 2019PZ.....39....3K OH, H2O, SiO maser.
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References
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1 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
2 Sitek, M.; Pojmański, G., 2014, The All Sky Automated Survey. The
Catalog of Bright Variable Stars in the I-band, South of Declination +28o
2014AcA....64..115S
3 Pojmanski, G., 2002, The All Sky Automated Survey 2002AcA....52..397P
4 G.Neugebauer, R.B.Leighton, Two-micron Sky Survey, 1969. 1969tmss.book.....N
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 = 3.89H = 2.69K = 2.06J - K = 1.82
AllWISE W3 = -1.77W4 = -3.01W3 - W4 = 1.24
APASS-DR9 B = 14.47V = 11.32g' = 12.72r' = 10.01B - V = 3.15
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Size 5' x 5' (297 x 298 pixels)
Center 18 41 25.32 -04 20 32.0 (J2000)
Source STScI
Survey

Red, all sky, 1.0 arcsec/pixel
  Negative
Supporting Documents
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Revision History
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3 Admin, VSX 2019-11-01 03:30 UTC Update from [2019PZ.....39....3K].
2 Otero, Sebastian Alberto 2015-11-18 23:46 UTC Type, period, epoch and range from ASAS-3 data. Spectral type from Skiff (2014). UCAC4 position.
1 Admin, VSX 2005-12-18 01:33 UTC Preserved original object data.