Садржај
Слике
Уплоадјуј своје слике
DSS Images Other Images
Везани чланци
Northern JHK Standard Stars for Array Detectors
We report J, H, and K photometry of 86 stars in 40 fields in theNorthern Hemisphere. The fields are smaller than or comparable to a 4' x4' field of view and are roughly uniformly distributed over the sky,making them suitable for a homogeneous broadband calibration network fornear-infrared panoramic detectors. K magnitudes range from 8.5 to 14 andJ-K colors, from -0.2 to 1.2. The photometry is derived from a total of3899 reduced images; each star has been measured, on average, 26.0 timesper filter on 5.5 nights. Typical errors on the photometry are ~0.012mag.
|
Додај нови чланак
Линкови у сродству са темом
Додај нови линк
Чланови следећих група \:
|
Посматрања и Астрометриски подаци
| Сазвежђа: | Змај |
| Ректацензија: | 18h36m10.63s |
| Deклинација: | +65°04'29.8" |
| Apparent магнитуда: | 8.391 |
| Даљина: | 180.505 parsecs |
| Proper motion RA: | 5.3 |
| Proper motion Dec: | 4.5 |
| B-T magnitude: | 8.628 |
| V-T magnitude: | 8.411 |
Каталог и designations:
|
