David's Astronomy - Images 2006-12-06 (S00159)

Objects Session Notes

C/2006 M4 (Swan) - Comet

M31 - Extragalactic Nova: M31 2006 14

M31 - Extragalactic Nova: M31 2006 15

M74 - Spiral Galaxy

Astrometric & Photometric Monitoring
- HD 5501/5513 (eclipsing variables)
- SS Cyg (dwarf novae)
- Z And, RU Peg (variable)
- BL Lac (BL Lac blazer)
- U And, W And, U Her (Mira variables)
- 61 Cyg, Barnards Star (nearby star)
- TrES-2 (exosolar planet sol)

- 4.8 hr session, largely operated under automated control

- CCD operation of -20 degC (at 55% average cooling). .

- session terminated early due to developing cloud

- main objectives were to acquire BVRI images of Mira stars (U Her, U And, W And) as part of ongoing photometric studies, together with follow-up images on C/2006 M4, BL Lac and M31 Nova (2006 14)

- opportunity taken to acquire images of Mira (Cetus)

-

- More Notes

-

C/2006 M4 (Swan) - Comet

Comet C/2006 M4 (Swan)
(passing through starfield in Aquila)

CCD Image
5 x 60s exposure (average combine, aligned on comet),
2x2 binning, C filter, Linear scale
2006-12-06 17:42h UT (#159035-39)

False Colour CCD Image
Log brightness scaling (3000 ADU range)
(details as above)

M31 - Extragalactic Nova : M31 2006 14

M31 part (Andromeda)
An extragalactic nova (M31 2006 14) was discovered in M31 on 2006/11/25.468
by Koichi Itagak, with an apparent magnitude of +17.5
(Extragalactic Novae page at Rochester Supernova site | Discovery Image | Reference: 2006-11a)

Image below (2006-12-06.776) was taken 11.31 days after discovery.
Location of object, shown by white marker, is consistent with nova recorded by K.Itagaki
Estimated magnitude (+16.4)

CCD Image
7 x 3 min exposure (median combine), 2x2 binning, C Filter
2006-12-06 18:37h UT (#159092-98)

M31 - Extragalactic Nova : M31 2006 15

M31 part (Andromeda)
An extragalactic nova (M31 2006 15) was discovered in M31 on 2006/11/30.808
by K. Hornoch, M. Wolf and P. Zasche, with an apparent magnitude of +17.3
(Extragalactic Novae page at Rochester Supernova site | Discovery Image | Reference: tba)

Image below was taken 6 days after discovery.
No sign of any object is evident at discovery location.
Limiting magnitude of image +17.5