PHOTOMETRIC INVESTIGATION OF XX CYG
The photometric observations of SX Phe type star XX Cyg (V=12m, A5) were made in five nights using 48 cm reflector at the Astronomical Observatory of Odessa National University. The CCD photometer and the V filter of the UBV system was used. The variable and comparison stars monitored in the frame s...
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Odessa I. I. Mechnykov National University
2017-03-01
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| Series: | Odessa Astronomical Publications |
| Online Access: | http://oap.onu.edu.ua/article/view/93274 |
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doaj-015f1f31d0c44a8bb4d16c1abbb903fa2020-11-25T03:24:48ZengOdessa I. I. Mechnykov National UniversityOdessa Astronomical Publications1810-42152017-03-0117010610810.18524/1810-4215.2004.17.9327493274PHOTOMETRIC INVESTIGATION OF XX CYGS. N. Udovichenko0Astronomical Observatory, Odessa National University T.G.Shevchenko Park, Odessa 65014, UkraineThe photometric observations of SX Phe type star XX Cyg (V=12m, A5) were made in five nights using 48 cm reflector at the Astronomical Observatory of Odessa National University. The CCD photometer and the V filter of the UBV system was used. The variable and comparison stars monitored in the frame simultaneously. Light curves indicates a total light range 0.8 mag. A frequency analyses allow to find only one frequency of pulsating and it cause to consider this star as unique among this type. The light variation of XX Cyg can be well fitted with a single pulsation frequency during 60 years. This pulsating is in generally stable, but, there is a slight variation of period and, possibly, the light curves show, besides the primary maximum, a small bump of an amplitude of approximately 0.1 mag.http://oap.onu.edu.ua/article/view/93274 |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
S. N. Udovichenko |
| spellingShingle |
S. N. Udovichenko PHOTOMETRIC INVESTIGATION OF XX CYG Odessa Astronomical Publications |
| author_facet |
S. N. Udovichenko |
| author_sort |
S. N. Udovichenko |
| title |
PHOTOMETRIC INVESTIGATION OF XX CYG |
| title_short |
PHOTOMETRIC INVESTIGATION OF XX CYG |
| title_full |
PHOTOMETRIC INVESTIGATION OF XX CYG |
| title_fullStr |
PHOTOMETRIC INVESTIGATION OF XX CYG |
| title_full_unstemmed |
PHOTOMETRIC INVESTIGATION OF XX CYG |
| title_sort |
photometric investigation of xx cyg |
| publisher |
Odessa I. I. Mechnykov National University |
| series |
Odessa Astronomical Publications |
| issn |
1810-4215 |
| publishDate |
2017-03-01 |
| description |
The photometric observations of SX Phe type star XX Cyg (V=12m, A5) were made in five nights using 48 cm reflector at the Astronomical Observatory of Odessa National University. The CCD photometer and the V filter of the UBV system was used. The variable and comparison stars monitored in the frame simultaneously. Light curves indicates a total light range 0.8 mag. A frequency analyses allow to find only one frequency of pulsating and it cause to consider this star as unique among this type. The light variation of XX Cyg can be well fitted with a single pulsation frequency during 60 years. This pulsating is in generally stable, but, there is a slight variation of period and, possibly, the light curves show, besides the primary maximum, a small bump of an amplitude of approximately 0.1 mag. |
| url |
http://oap.onu.edu.ua/article/view/93274 |
| work_keys_str_mv |
AT snudovichenko photometricinvestigationofxxcyg |
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