MGAB-V3351 to MGAB-V3400 light curves

MGAB-V3362

Gaia EDR3 position: 11.259771 50.569015

Variability type: EA/WD

Variability range: 17.8 - 19.3 r

Period: 0.2865810 d

HJD epoch: 2458268.947

MGAB-V3363

Gaia EDR3 position: 158.703887 0.867048

Variability type: EA/WD

Variability range: 19.1 - <21.0 r

Period: 0.09155899 d

HJD epoch: 2458268.9424

MGAB-V3364

Gaia EDR3 position: 167.022367 65.369847

Variability type: EA/WD

Variability range: 18.8 - 21.2 r

Period: 0.3208343 d

HJD epoch: 2458247.6622

MGAB-V3365

Gaia EDR3 position: 19.602117 34.751205

Variability type: EA/WD

Variability range: 19.8 - <22.0 r

Period: 0.08194159 d

HJD epoch: 2458791.7821

MGAB-V3366

Gaia DR2 1684562422045911040

Coordinates: 201.848032 +67.737412

Variability type: CV

Variability range: 19.6 - 21.3 r

Period: 0.05709309: d

HJD epoch: 2458373.848

Adjust for g-band: 0.25 mag

MGAB-V3367

Gaia EDR3 position: 206.518422 49.832578

Variability type: EA/WD

Variability range: 19.4 - <21.3 r

Period: 0.21499160 d

HJD epoch: 2458219.8394

MGAB-V3368

Gaia EDR3 position: 226.478112 -21.449037

Variability type: EA/WD

Variability range: 19.1 - <21.0 r

Period: 0.0742532: d

HJD epoch: 2458648.7385

MGAB-V3369

Gaia EDR3 position: 286.420908 27.064795

Variability type: EA/WD

Variability range: 19.1 - <21.0 r

Period: 0.16384025 d

HJD epoch: 2458337.863

MGAB-V3370

Gaia EDR3 position: 348.456364 18.256609

Variability type: EA/WD

Variability range: 18.8 - <21.0 r

Period: 1.334009 d

HJD epoch: 2459114.7312

MGAB-V3371

Gaia EDR3 position: 38.363497 28.417863

Variability type: EA/WD

Variability range: 19.7 - <22.0 r

Period: 0.1210068 d

HJD epoch: 2459114.830

MGAB-V3372

Gaia EDR3 position: 256.746139 21.703238

Variability type: EA/WD

Variability range: 19.3 - 21.8 r

Period: 0.18925365 d

HJD epoch: 2458747.6306

MGAB-V3373

Gaia EDR3 position: 337.159228 26.110494

Variability type: EA/WD

Variability range: 19.2 - <21.5 r

Period: 0.0720339 d

HJD epoch: 2458367.306

MGAB-V3374

Gaia EDR3 position: 37.962464 27.463674

Variability type: EA/WD

Variability range: 19.4 - <21.5 r

Period: 0.3826361 d

HJD epoch: 2458730.9305

MGAB-V3375

Gaia EDR3 position: 213.086238 65.689804

Variability type: EA/WD

Variability range: 19.3 - 21 r

Period: 0.158460495 d

HJD epoch: 2458229.8084

MGAB-V3376

Gaia EDR3 position: 261.201536 -13.105138

Variability type: VAR

Variability range: 18.0 - <21.0 g

Remarks: Not an EA/WD. The correct variability type will be applied in next updates.

MGAB-V3377

Gaia EDR3 position: 230.340651 32.186628

Variability type: EA/WD

Variability range: 19.5 - 21.3 r

Period: 0.18023751 d

HJD epoch: 2458229.8125

MGAB-V3378

Gaia EDR3 position: 8.397302 39.285167

Variability type: EA/WD

Variability range: 19.1 - <21.0 r

Period: 0.24965845 d

HJD epoch: 2458436.8577

MGAB-V3379

Gaia EDR3 position: 301.672243 27.480695

Variability type: EA/WD

Variability range: 18.9 - 21.0 r

Period: 0.16610445 d

HJD epoch: 2458436.9094

MGAB-V3380

Gaia EDR3 position: 211.405560 10.655350

Variability type: EA/WD

Variability range: 19.2 - <21.5 r

Period: 0.2714122 d

HJD epoch: 2458367.301

MGAB-V3381

Gaia EDR3 position: 298.016194 55.06785

Variability type: EA/WD

Variability range: 18.7 - 20.7 r

Period: 1.314401 d

HJD epoch: 2459087.437

Remarks: A co-discovery with Adam Popowicz for follow-up of the target, to track down the period.

MGAB-V3382

Gaia EDR3 position: 2.831444 -27.646678

Variability type: EA/WD

Variability range: 19.0 - <21.0 r

Period: 0.1831946 d

HJD epoch: 2459058.0673

MGAB-V3383

Gaia EDR3 position: 43.358164 52.598155

Variability type: EA/WD

Variability range: 20.1 - <21.5 r

Period: 0.09237991 d

HJD epoch: 2459057.9241

MGAB-V3384

Gaia EDR3 position: 222.081000 -2.106623

Variability type: EA/WD

Variability range: 19.6 - 21.5 r

Period: 0.0936019 d

HJD epoch: 2459058.1507

MGAB-V3385

Gaia EDR3 position: 125.046688 58.709781

Variability type: EA/WD

Variability range: 18.7 - 20.4 r

Period: 0.3410217 d

HJD epoch: 2459058.210

MGAB-V3386

Gaia EDR3 position: 248.587548 -27.222425

Variability type: EA/WD

Variability range: 19.0 - <21.0 r

Period: 0.1560757 d

HJD epoch: 2459058.3315

MGAB-V3387

Gaia EDR3 position: 217.472795 52.398122

Variability type: EA/WD

Variability range: 19.6 - <21.5 r

Period: 0.07322132 d

HJD epoch: 2459087.4604

MGAB-V3388

Gaia EDR3 position: 150.063241 30.725150

Variability type: EA/WD

Variability range: 18.8 - 19.9 r

Period: 0.4514995 d

HJD epoch: 2459087.883

MGAB-V3389

Gaia EDR3 position: 126.265702 13.089111

Variability type: EA/WD

Variability range: 19.4 - <21.0 r

Period: 0.498064 d

HJD epoch: 2458367.272

MGAB-V3390

Gaia DR2 1869111286948848128

Coordinates: 312.463644 33.864757

Variability type: VAR

Variability range: 18.64 - 18.79 g

Period: 0.01498496 d

HJD epoch: 2458373.659

Adjust for r-band: -0.17 mag

Remarks: Based on Gaia DR2 distance, the target is more likely a hot subdwarf rather than a white dwarf.

MGAB-V3391

Gaia EDR3 position: 113.720505 -13.811611

Variability type: CV

Variability range: 17.8 - 19.9 g

MGAB-V3392

Gaia EDR3 position: 310.789712 -0.908511

Variability type: EA

Variability range: 19.4 - 20.6 g

Period: 1.582542 d

HJD epoch: 2458374.104

MGAB-V3393

Gaia EDR3 position: 300.902161 21.929307

Variability type: EA/HW

Variability range: 18.55 - 20.3 r

Period: 0.4468774 d

HJD epoch: 2458373.930

MGAB-V3394

Gaia EDR3 position: 307.730388 17.508895

Variability type: CV

Variability range: 17.8 - 19.3 g

Remarks: UGZ/IW type candidate.

MGAB-V3395

Gaia DR2 2061053654587545728

Coordinates: 304.493526 37.93348

Variability type: E+YSO

Variability range: 14.55 - 15.23 r

Period: 227.0 d

HJD epoch: 2458498

Adjust for g-band: -0.56 mag

Remarks: Dolidze 40 open cluster member. Possibly eccentric binary with a secondary eclipse at phase = 0.62 (eclipse duration 8%), however the eclipse was not present before 2017 (ASAS-SN V-band data). A complex eclipse observed in 2019 suggests an eclipsing circumstellar disk around one of components. Out of eclipse brightness variations up to 0.20 mag (ZTF data). Significant infrared excess (2MASS, WISE). ASAS-SN magnitudes contaminated by 2MASS J20175955+3755565 (g= 14.7 mag, sep. 13"). Range has been corrected.

Information about MGAB-V3396 target currently unavailable.

MGAB-V3397

Gaia EDR3 position: 318.214392 32.632673

Variability type: AM

Variability range: 18.1 - 20.3 g

MGAB-V3398

Gaia EDR3 position: 44.004693 44.722945

Variability type: NL+E

Variability range: 15.6 - 18.1 g

Period: 0.130654674 d

HJD epoch: 2458356.21

Remarks: Eclipse duration 13%.

MGAB-V3399

Gaia EDR3 position: 330.684015 47.059896

Variability type: NL/VY

Variability range: 19.4 - 21.4 g

MGAB-V3400

Gaia EDR3 position: 199.459878 -5.976382

Variability type: UGZ:

Variability range: 18.6 - 20.4 g

These discoveries were possible with publicly available ZTF, Pan-STARRS1 and ASAS-SN data.

  • Masci, F. J.; et al., 2019, The Zwicky Transient Facility: Data Processing, Products, and Archive (2019PASP..131a8003M)

  • Chambers, K. C.; et al., 2016,The Pan-STARRS1 Surveys (2016arXiv161205560C)

  • Kochanek, C. S.; et al., 2017, The All-Sky Automated Survey for Supernovae (ASAS-SN) Light Curve Server v1.0 (2017PASP..129j4502K)

  • Images are taken from Pan-STARRS1 (MGAB-V3363, MGAB-V3364, MGAB-V3365, MGAB-V3368, MGAB-V3386) and ZTF (the rest)