|Proposer||(45204) Krzysztof Zieliński (firstname.lastname@example.org) obscode: ZKRA|
|Assigned To||(3663) Dirk Terrell|
|Date Submitted||Dec. 12, 2022|
Predicted approximate magnitude ranges in coming months:
Observations start date:
Expiration date (YYYY-MM-DD format):
SY Dra, V Dra, Z Cep are stars that I have been observing visually at astronomical observatory. They have gone too faint recently - this circumstance excludes them from my observing program for now and I would like to know when I could visually observe them again. They start rising in brightness rather abruptly. The plan is to make photometry measurements of V Dra and Z Cep for about 3 months - as long as they cannot be seen with my high school's observatory's main equipment - Celestron CPC 925.
I'm a high school student and this is my first AAVSOnet proposal. I have learned VPhot software on my own and being eager to test newly acquired skills. I'd like to have a start in the field.
SY Dra is a poorly investigated star. Only 501 observations have been reported to AAVSO so far (only 3 of them are in three bands). For example, Thomas Karlsson's "O-C diagram of Mira stars" website does not contain any information on it. Therefore, my idea is to gain more data (in BVRI bands, not only V) on SY Dra in upcoming months and analyse it in detail.
I'd like to point out that SY Dra and V Dra might be temporarily difficult to observe as their altitude is low (<30°) for most of the night (from perspective of most AAVSOnet telescopes). However, even mediocre SNR is acceptable for me. BSM-NH2 is probably the best suited site for this proposal.
All data would be submitted to AAVSO database after VPhot analysis.
Krzysztof Zieliński (ZKRA)
|Target||RA (H.HH)||Dec (D.DD)||Magnitude||Telescope||Observation Frequency||Expiration Date||Proprietary Term|
|SY Dra||17.566050||53.96044||14.0–10.5||BSM_NH2||5||April 1, 2023||No|
|V Dra||17.970700||54.87167||14.7–9.5||BSM_NH2||5||April 1, 2023||No|
|Z Cep||2.438160||81.67831||15.7–10.1||BSM_NH2||5||April 1, 2023||No|
Committed to NH until 2023-04-01. BVI images
I would request exposure times of I filter and R filter images of Z Cep to be shortened (BSM-NM). In the most recent I image(s) from 05/03/2023, saturation of the target star occured. ("Z_Cep_bsm_nm_I_230305_055505_zkra.fts.bz2" - and also - "Z_Cep_bsm_nm_I_230305_055918_zkra.fts.bz2")
Comments on this proposal are closed.