David's Astronomy Pages
CCD Images - Session 259 (2008-01-31)

Previous Imaging Session
Images
(S258)
  Home
Images
Sessions
  Home
Home
Page
  Next Imaging Session
Images (S260)
 
Objects Session Notes
Bullet 2007 TU24 - Minor Planet (Near Earth Asteroid)
Bullet Astrometric & Photometric Monitoring
- SS Cyg  (dwarf nova)
- BL Lac (Blazar)
- RX And, Z And, U Mon  (variables)



- Evening session (1.9hr)
- CCD operation of -25 degC (at 81% average cooling). 
- main objective was to acquire images of near earth asteroid 2007 TU24 and certain selected stars for ongoing photometric, in particular SS Cyg, Z And and RX And. 

2007 TU24 - Minor Planet (Near Earth Asteroid)

This 10m diameter asteroid passed by earth today (2008-01-31) at a distance of 1.4 LD (lunar distance).

Near Earth Asteroid 2007 TU24  
(passing through starfield in Ursa Major)
Image
Annotated CCD Image 
7 frames, 15s exposure, at 5 minute intervals
 (av. combine), 2x2 binning, C Filter
2008-01-31 21:35 to 22:05h UT (#259070-147)
  
Image  
Annotated CCD Image 
84 frames, 15s exposure (av. combine), 2x2 binning, C Filter
2008-01-31 21:32 to 22:05h UT (#259064-147)

Back to Top


Astrometric and Photometric Monitoring

Back to Top


This Web Page: CCD Images - Session 259  (2008-01-31)
Last Updated : 2015-05-16
Site Owner : David Richards
Home Page : David's Astronomy Web Site