[vsnet-newvar 2610] New Hatayama variables (HykV12-HykV21)
Hiroyuki Maehara
mira at cetus-net.org
Thu Jan 3 22:58:38 JST 2008
K. Hatayama reports the discovery of new variable stars HykV12-HykV21.
------------------------------------------------------------------------
HykV12
= 2MASS J18090683-3447592 18 09 06.83 -34 47 59.3 (2000.0)
CCD magnitude estimates by VSOLJ members
object YYYYMMDD(UT) mag code
HykV12 20070913.439 132C Hyk.VSOLJ
HykV12 20070919.437 127C Hyk.VSOLJ
HykV12 20070920.478 123C Hyk.VSOLJ
HykV12 20070921.461 120C Hyk.VSOLJ
HykV12 20070926.445 118C Hyk.VSOLJ
HykV12 20071002.458 121C Hyk.VSOLJ
HykV12 20071011.441 121C Hyk.VSOLJ
HykV12 20071018.404 116C Hyk.VSOLJ
Observer: K. Hatayama (Niigata, Japan)
Instruments: 25cmSCT + ST-9XE (unfiltered)
------------------------------------------------------------------------
HykV13
= 2MASS J18104848-3007332 18 10 48.48 -30 07 33.3 (2000.0)
CCD magnitude estimates by VSOLJ members
object YYYYMMDD(UT) mag code
HykV13 20070823.453 <140C Hyk.VSOLJ
HykV13 20070911.436 137C Hyk.VSOLJ
HykV13 20070913.437 133C Hyk.VSOLJ
HykV13 20070921.472 126C Hyk.VSOLJ
HykV13 20070926.443 122C Hyk.VSOLJ
HykV13 20071002.456 127C Hyk.VSOLJ
HykV13 20071011.439 131C Hyk.VSOLJ
HykV13 20071018.402 130C Hyk.VSOLJ
Observer: K. Hatayama (Niigata, Japan)
Instruments: 25cmSCT + ST-9XE (unfiltered)
------------------------------------------------------------------------
HykV14
= 2MASS J18002064-2948515 18 00 20.65 -29 48 51.5 (2000.0)
= MSX6C G000.8723-03.2089 18 00 20.6 -29 48 51 (2000.0)
CCD magnitude estimates by VSOLJ members
object YYYYMMDD(UT) mag code
HykV14 20070815.556 113C Hyk.VSOLJ
HykV14 20070820.460 114C Hyk.VSOLJ
HykV14 20070823.447 115C Hyk.VSOLJ
HykV14 20070913.429 119C Hyk.VSOLJ
HykV14 20070919.427 121C Hyk.VSOLJ
HykV14 20070920.469 119C Hyk.VSOLJ
HykV14 20070921.451 116C Hyk.VSOLJ
HykV14 20070926.435 120C Hyk.VSOLJ
HykV14 20071002.449 119C Hyk.VSOLJ
HykV14 20071011.433 118C Hyk.VSOLJ
HykV14 20071018.395 121C Hyk.VSOLJ
HykV14 20071024.401 123C Hyk.VSOLJ
HykV14 20071031.394 121C Hyk.VSOLJ
Observer: K. Hatayama (Niigata, Japan)
Instruments: 25cmSCT + ST-9XE (unfiltered)
------------------------------------------------------------------------
HykV15
= 2MASS J18011618-3105062 18 01 16.19 -31 05 06.2 (2000.0)
= MSX6C G359.8629-04.0089 18 01 16.2 -31 05 07 (2000.0)
CCD magnitude estimates by VSOLJ members
object YYYYMMDD(UT) mag code
HykV15 20070731.516 128C Hyk.VSOLJ
HykV15 20070809.581 124C Hyk.VSOLJ
HykV15 20070810.501 125C Hyk.VSOLJ
HykV15 20070815.551 131C Hyk.VSOLJ
HykV15 20070820.464 132C Hyk.VSOLJ
HykV15 20070823.447 135C Hyk.VSOLJ
HykV15 20070919.428 <140C Hyk.VSOLJ
Observer: K. Hatayama (Niigata, Japan)
Instruments: 25cmSCT + ST-9XE (unfiltered)
------------------------------------------------------------------------
HykV16
= 2MASS J18002575-3100346 18 00 25.76 -31 00 34.7 (2000.0)
= IRAS R17571-3100 18 00 25.7 -31 00 39 (2000.0)
= MSX6C G359.8400-03.8148 18 00 25.7 -31 00 34 (2000.0)
CCD magnitude estimates by VSOLJ members
object YYYYMMDD(UT) mag code
HykV16 20070815.551 <140C Hyk.VSOLJ
HykV16 20070913.430 136C Hyk.VSOLJ
HykV16 20070926.436 126C Hyk.VSOLJ
HykV16 20071018.395 123C Hyk.VSOLJ
HykV16 20071024.401 124C Hyk.VSOLJ
Observer: K. Hatayama (Niigata, Japan)
Instruments: 25cmSCT + ST-9XE (unfiltered)
------------------------------------------------------------------------
HykV17
= USNO-A2.0 0525-31240421 17 59 53.746 -30 48 23.81 (2000.0)
= USNO-B1.0 0591-0609679 17 59 53.77 -30 48 23.6 (2000.0)
= 2MASS J17595373-3048242 17 59 53.73 -30 48 24.3 (2000.0)
CCD magnitude estimates by VSOLJ members
object YYYYMMDD(UT) mag code
HykV17 20070731.516 137C Hyk.VSOLJ
HykV17 20070809.581 134C Hyk.VSOLJ
HykV17 20070810.501 135C Hyk.VSOLJ
HykV17 20070820.464 135C Hyk.VSOLJ
HykV17 20070823.447 138C Hyk.VSOLJ
HykV17 20070913.430 <140C Hyk.VSOLJ
HykV17 20070921.452 139C Hyk.VSOLJ
HykV17 20070926.436 136C Hyk.VSOLJ
HykV17 20071018.395 134C Hyk.VSOLJ
Observer: K. Hatayama (Niigata, Japan)
Instruments: 25cmSCT + ST-9XE (unfiltered)
------------------------------------------------------------------------
HykV18
= 2MASS J17585673-3210467 17 58 56.74 -32 10 46.7 (2000.0)
= MSX6C G358.6641-04.1179 17 58 56.6 -32 10 45 (2000.0)
CCD magnitude estimates by VSOLJ members
object YYYYMMDD(UT) mag code
HykV18 20070823.447 <140C Hyk.VSOLJ
HykV18 20070913.431 130C Hyk.VSOLJ
HykV18 20070919.428 132C Hyk.VSOLJ
HykV18 20070920.469 132C Hyk.VSOLJ
HykV18 20070921.452 126C Hyk.VSOLJ
HykV18 20070926.437 125C Hyk.VSOLJ
HykV18 20071002.450 127C Hyk.VSOLJ
HykV18 20071018.396 126C Hyk.VSOLJ
Observer: K. Hatayama (Niigata, Japan)
Instruments: 25cmSCT + ST-9XE (unfiltered)
------------------------------------------------------------------------
HykV19
= 2MASS J18005553-3248316 18 00 55.53 -32 48 31.7 (2000.0)
= MSX6C G358.3219-04.7919 18 00 55.7 -32 48 29 (2000.0)
CCD magnitude estimates by VSOLJ members
object YYYYMMDD(UT) mag code
HykV19 20070823.448 <135C Hyk.VSOLJ
HykV19 20070913.431 128C Hyk.VSOLJ
HykV19 20070926.437 129C Hyk.VSOLJ
HykV19 20071002.451 120C Hyk.VSOLJ
HykV19 20071018.396 122C Hyk.VSOLJ
Observer: K. Hatayama (Niigata, Japan)
Instruments: 25cmSCT + ST-9XE (unfiltered)
------------------------------------------------------------------------
HykV20
= USNO-A2.0 0525-31267211 18 00 04.404 -35 18 55.76 (2000.0)
= USNO-B1.0 0546-0590269 18 00 04.38 -35 18 54.6 (2000.0)
= USNO-B1.0 0546-0590272 18 00 04.42 -35 18 55.3 (2000.0)
= 2MASS J18000424-3518514 18 00 04.25 -35 18 51.4 (2000.0)
= ASAS 180004-3519.0 18 00 04 -35 19 (2000.0)
CCD magnitude estimates by VSOLJ members
object YYYYMMDD(UT) mag code
HykV20 20070731.515 134C Hyk.VSOLJ
HykV20 20070809.575 132C Hyk.VSOLJ
HykV20 20070810.514 132C Hyk.VSOLJ
HykV20 20070815.580 130C Hyk.VSOLJ
HykV20 20070823.449 130C Hyk.VSOLJ
HykV20 20070911.431 131C Hyk.VSOLJ
HykV20 20070913.431 123C Hyk.VSOLJ
HykV20 20070919.429 125C Hyk.VSOLJ
HykV20 20070920.471 125C Hyk.VSOLJ
HykV20 20070921.453 120C Hyk.VSOLJ
HykV20 20070926.438 122C Hyk.VSOLJ
HykV20 20071002.456 122C Hyk.VSOLJ
HykV20 20071011.435 123C Hyk.VSOLJ
HykV20 20071018.397 123C Hyk.VSOLJ
Observer: K. Hatayama (Niigata, Japan)
Instruments: 25cmSCT + ST-9XE (unfiltered)
------------------------------------------------------------------------
HykV21
= USNO-A2.0 0525-31248978 17 59 57.025 -36 13 16.52 (2000.0)
= USNO-B1.0 0537-0587409 17 59 56.99 -36 13 17.4 (2000.0)
= 2MASS J17595722-3613172 17 59 57.23 -36 13 17.2 (2000.0)
CCD magnitude estimates by VSOLJ members
object YYYYMMDD(UT) mag code
HykV21 20070731.515 123C Hyk.VSOLJ
HykV21 20070731.515 123C Hyk.VSOLJ
HykV21 20070810.516 128C Hyk.VSOLJ
HykV21 20070821.492 134C Hyk.VSOLJ
HykV21 20070911.431 135C Hyk.VSOLJ
HykV21 20070919.430 134C Hyk.VSOLJ
HykV21 20071018.397 137:C Hyk.VSOLJ
Observer: K. Hatayama (Niigata, Japan)
Instruments: 25cmSCT + ST-9XE (unfiltered)
------------------------------------------------------------------------
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