The new variable star HassfortherV01
The new variable star was detected by blinking stardial images and first announced in vsnet-newvar 383 (25.04.2000). Stardial consists of a redfiltered Kodak KAF-0400-Chip, so the magnitudes are a combination of R and I.
| HassfortherV01, Data |
| Pos. (2000): |
17h25m10.7s -3°08´04.0" |
| Identification: |
Hassforther01 = IRAS 17225-0305 |
| Identification: |
Hassforther01 = ASAS 172511-0308.1 |
Measuring 311 Stardial-images from 1996 to 2003 showed that HassfortherV01 is a Mira-star.
The star reaches 8.5 in I, according to the
TASS-Photometry. ASAS3-V-magnitudes reaches about 12.7, the star is therefore very red. The amplitude is higher then 2.3 mag in I.
Lightcurve and elements
Lightcurve of HassfortherV01 (311 Stardial-measurements), created with
AVE
Lightcurve with ASAS3-data
A period Search with AVE revealed a period of 350 d. The phased data with this period:
Phased data of HassfortherV01. Diagramm created with
AVE.
The following elements give a good fit to the data:
Max = 2450591 + 350d x E
Next Maxima:
JD 2453041 = 05.02.2004
JD 2453391 = 20.01.2005
Images
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Full Stardial-Field of BH01
= HassfortherV01 (stacked images). |
Detail |
ASAS3 and Stardial-images of HassfortherV01. At left a typical example of an ASAS3-image, in the middle a combination of six ASAS3-images, at right a drizzle-combined image of sixty Stardial-images. Note: the focal-length of the Stardial-camera is only 50mm!
Color image of HassfortherV01 created from the ASAS3- and Stardial-images shown above. The very bright orange-red star is the Mira-variable AH Oph. HassfortherV01 is in the center of the image (31' x 31', North is at top).
Designed by Béla Hassforther.
Last modified: 08.10.2003
URL of this page: http://www.bela1996.de/astronomy/sd/bh01.html
Color-Image of HassfortherV01 from