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AstroRockers Blog

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More about my astronomical observations and other hobbies:
Aurora - Meteors - Comets - Music

1 April 2013: Comet C/2011 L4 PANSTARRS

Comets Posted on Sun, April 07, 2013 15:55:53

During the evening hours of april 1, 2013 I photographed comet C/2011 L4 PANSTARRS, now for the first time with my Astrotrac Travel Mount. Sky was very good, only at low altitude there was some haze (due to moisture or dust) and dusk.

Picture below is a stack of 4 images of 60 seconds, taken with my Canon EOS 40D, a Canon EF 200 mm F 2.8 (F 3.2) telelens and a IDAS LPF clip-in filter. Also added darks and bias frames. Time: 19:55 UT. The comet was at that time at a height of only 12 degrees above the horizon.

Picture 1: Comet C/2011 L4 PANSTARRS and the Andromeda galaxy (Messier 31). Click on the image for a larger version.

Mount: AstroTrac Travel Mount
Camera: Canon EOS 40D
Lens: Canon EF 200 mm F 2.8 type L lens.
Filter: IDAS LPS filter
Accessories: TC 80N3 timer controller,
Location: Groevenbeekse Heide, Ermelo (5,4 east, 52,2 nort)
Software: DeepskyStacker, Corel Paint Shop Photo Pro X12
Description: stack of 4×60 seconds, 1250 iso, F 3.2

Picture 2: my Astrotrac Travel Mount during dusk of april 1, 2013. Click on the image for a larger version.



6/7 april 2013: two fireballs (2)

EN-98 Fireballs Posted on Sun, April 07, 2013 12:24:36

This is the second fireball captured during the night 6/7 april 2013

Picture 2: Fireball 6 april 2013 22:12 UT. Click on the image for a larger version.

Camera: Canon EOS 450D
Lens: Sigma 4.5 mm F2.8 EX DC Circulair fish eye
Timer Controller: HAMA DCCS timer controller
Exposure time: 119s
Interval: 1 s
ISO: 400
F: 3,2
Date: 06-04-2013
Period UT: 22:11:00 – 22:12:59 UT
Time meteor UT: Unknown
Classification: SPO
Constellation:HER
Brightness: -6 (flare)
Simultaneously with stations: Borne
Remarks:



6/7 april 2013: two fireballs (1)

EN-98 Fireballs Posted on Sun, April 07, 2013 12:04:20

The night of april 6/7, 2013 was clear during the first hours. The all sky camera could capture two fireballs, which appeared within about 8 to 10 minutes. The first one is presented here. It is problaby a sporadic slow moving fireball. There are 18 breaks visible in the track, indicating a visibility of 2.2 seconds.

Picture 1: Slow sporadic fireball of 6 april 2013. Click on the image for a larger version.

Camera: Canon EOS 450D
Lens: Sigma 4.5 mm F2.8 EX DC Circulair fish eye
Timer Controller: HAMA DCCS timer controller
Exposure time: 119s
Interval: 1 s
ISO: 400
F: 3,2
Date: 06-04-2013
Period UT: 22:04:00 – 22:05:59 UT
Time meteor UT: Unknown
Classification: SPO
Constellation:OPH
Brightness: -5
Simultaneously with stations: Borne
Remarks: