AAVSO Home



Welcome, Guest. You are not logged in.
Log in
    Revise    New Search
Latest Details
Log in to retrieve additional aliases from SIMBAD.
Name
  MM Sco  
AAVSO UID
000-BCX-137 (8298 observations)  
Constellation
Scorpius Sequence
J2000.0
17 30 45.24 -42 11 42.5  (262.68850 -42.19514) Search nearby
B1950.0 17 27 11.55 -42 09 25.6
Proper motion
RA: -3.4 +/- 4.2 mas/yDec: -33.2 +/- 4.2 mas/ySource: UCAC4
Galactic coord. 347.167 -4.526
Other names

(Internal only)
Please note that aliases shown in grey link to obsolete records.
AAVSO 1723-42 ASASSN-V J173044.90-421144.8 Downes MM Sco
HV 6553 UCAC4 240-124548 USNO-A2.0 0450-28259213
USNO-B1.0 0478-0645553 WD J173045.24-421142.50  
(Not logged in)  Add name
Variability type
UGSU
Spectral type cv
Mag. range
13.0 - 18.7 g
Discoverer Constance D. Boyd
Epoch
--
Outburst --
Period 0.0602 d  (86.7 min)
Rise/eclipse dur. --
Remarks
Some references may be clicked to view in new window. Roll over index number to view submission details.
1 Schmeer, Patrick Superoutburst cycle length ~249 d. (derived from ASAS-SN Sky Patrol data). An apparently incorrect value (~712 d.) is given in 2021MNRAS.502.5668V. Gaia DR3 parallax 2.543 ± 0.093 mas (distance 388 ± 13 pc).
(Not logged in)  Add remark
References
Click reference title/citation to view in new window. Roll over index number to view submission details.
1 Vogt, N.; Puebla, E. C.; Contreras-Quijada, A., 2021, Determination of the
superoutburst cycle lengths of 206 SU UMa-type dwarf novae		 2021MNRAS.502.5668V
2 Kochanek, C. S.; et al., 2017, The All-Sky Automated Survey for Supernovae
(ASAS-SN) Light Curve Server v1.0		 2017PASP..129j4502K
3 T. Kato et al., 2009, arXiv:0905.1757v1 [astro-ph.SR] 2009arXiv0905.1757K
4 R.A. Downes et al., 2001, PASP 113, 764 (2006 archival version) 2005JAD....11....2D
5 Ritter H.; Kolb U., 2003, Catalogue of cataclysmic binaries, low-mass X-ray
binaries and related objects (Seventh edition, update RKcat7.24, 2016)		 2003A&A...404..301R
6 Catalogue of Stellar Spectral Classifications (Skiff, 2009-2016) 2003A&A...403..699M
7 R.A. Downes et al., 2001, PASP 113, 764 2001PASP..113..764D
8 N.Vogt, AsAp Suppl 53, N1, 21, 1983. 1983A&AS...53...21V
9 N.Vogt, F.M.Bateson, AsAp Suppl 48, N3, 383, 1982. 1982A&AS...48..383V
10 Shapley, H.; Swope, H. H., 1940, Variable stars in low galactic latitudes 1940AnHar..90..177S
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.
Images
Please review Digitized Sky Survey Acknowledgment and Copyright.
Image not downloaded. Click Retrieve Image to download and view. Retrieve image
Supporting Documents
There are currently no supporting documents on file for this star. (Not logged in)  Add document
Campaigns/Programs
 Legacy CVs
Revision History
Currently approved revision is checked. Click revision number to view details of that revision.
5 Schmeer, Patrick 2022-05-30 16:28 UTC Gaia DR3 position. Maximum magnitude derived from ASAS-SN Sky Patrol data. Minimum magnitude from ATLAS-REFCAT2. Orbital period from 2003A&A...404..301R. Discoverer from 1940AnHar..90..177S.
4 Admin, VSX 2017-12-15 12:36 UTC Spectral type from Skiff (VizieR on-line data: B/mk)
3 Admin, VSX 2010-01-05 04:43 UTC Position updated from the GCVS version of November 2009.
2 Admin, VSX 2009-05-14 00:46 UTC Update from [2009arXiv0905.1757K].
1 Admin, VSX 2005-12-18 01:33 UTC Initial upload.

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]
172.30.3.74