AAVSO Home



Welcome, Guest. You are not logged in.
Log in
    Revise    New Search
Details for Revision 1
Log in to retrieve additional aliases from SIMBAD.
Name
  MACHO 108.18819.1271  
AAVSO UID
--  
Constellation
Sagittarius Sequence
J2000.0
18 00 18.96 -28 11 25.8  (270.07902 -28.19050) Search nearby
B1950.0 17 57 09.43 -28 11 20.3
Galactic coord. 2.282 -2.400
Other names

(Internal only)
2MASS J18001896-2811257 AKARI-IRC-V1 J1800190-281125 ASASSN-V J180018.96-281125.8
(Not logged in)  Add name
Variability type
M
Spectral type --
Mag. range
14.7 - 17.2 Rc
Discoverer Klaus Bernhard, Stefan Hümmerich
Epoch
23 Jul 1999 (HJD 2451383) Ephemeris
Outburst --
Period 340 d
Rise/eclipse dur. --
Remarks
Some references may be clicked to view in new window. Roll over index number to view submission details.
1 Hümmerich, Stefan Positional data was taken from 2MASS. J-K = 1.667 (2MASS).
(Not logged in)  Add remark
References
Click reference title/citation to view in new window. Roll over index number to view submission details.
1 Iwanek, P.; et al., 2022, The OGLE Collection of Variable Stars: Nearly
66,000 Mira Stars in the Milky Way		 2022ApJS..260...46I
2 R.A. Allsman, T.S. Axelrod, 2001, arXiv:astro-ph/0108444 (MACHO online
data)		 2001astro.ph..8444A
External Links
Links open in a new window. Not all links may be valid for this particular target.
Location    Go   
Select a Location for more details.
Supporting Documents
Click document name to open or save. Browser plug-in or other software may be required for viewing.
1 MACHO 108.18819.1271 - lightcurve and phase plot Hümmerich, Stefan 2012-10-11 22:22 UTC MACHO 108.18819.1271 - lightcurve and phase plot
(Not logged in)  Add document
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
2 Otero, Sebastian Alberto 2023-02-27 20:30 UTC Period from 2022ApJS..260...46I. Gaia DR3 position.
1 Hümmerich, Stefan 2012-10-12 03:12 UTC Initial submission.

Guidelines    FAQ    Manual    Forum    Variability Types    Passbands    Copyright    Acknowledgments    Privacy    Contact    Help us   
The International Variable Star Index
© 2005-2025 American Association of Variable Star Observers (AAVSO)
Version 1.1 [C]
172.30.0.126