Proposal #469
| Proposer | (45802) Mikhail Ashchepkau (ashchepkau@gmail.com) obscode: AMIF |
|---|---|
| Assigned To | (3663) Dirk Terrell |
| Date Submitted | Dec. 17, 2023 |
| Status | Allocated |
| Priority | Normal |
| Proposal | I propose systematic BVRI observations of relatively bright mira NSVS 2572317 with BSM telescopes. The star is placed within Big Dipper and may be observed all year round. ASAS Vg data shows large hump or even double maximum, so reliable BVRI light curves will give additional information about red giants complex pulsations. According to VSX ephemeris next maximum will be in February 2024 (but my short LC shows other). I propose one set of observations per week during one cycle, or longer. In order to instrumental time optimization my observations of V351 Gem may be cancelled because two maximums have been got already. |
| Target | RA (H.HH) | Dec (D.DD) | Magnitude | Telescope | Observation Frequency | Expiration Date | Proprietary Term |
|---|---|---|---|---|---|---|---|
| NSVS 2572317 | 10.604722 | 59.93611 | 16.0–12.0 | BSM_NH2 | 7 | June 20, 2024 | No |
Comments
- (4726) Kenneth Menzies — Dec. 23, 2023, 1:45 a.m.
Committed to NH.
- (45802) Mikhail Ashchepkau — April 20, 2024, 1:39 p.m.
Experiense shows, that number of NSVS 2572317 images may be decreased:
4x300 sec B
4x300 sec V
4x10 sec R
2x2 sec I,
and in the case of observing time shortage just 2 images in each band may be enough for reliable estimations.- (45802) Mikhail Ashchepkau — April 20, 2024, 4:59 p.m.
Oh, sorry, 2 sec is too short exposure for I - VPhot can not find comp stars.
Increase please I set upto 4x5 sec.
Comments on this proposal are closed.