Comet 2014 Q2 Lovejoy

[jjjnettie (Jeanette)]

Imaged in the early hours of November 30th.
HiOptic 127mm F7.5 refractor
Canon CDS1100D @ ISO 3200
14x3 min subs, stacked in DSS and processed in CS3.

DSS didn't do the best job on stacking the stars, but I'm happy with what it did with the comet. It sure was hard work teasing out that tail, the data has been stretched to within a inch of it's life. LOL

[leon]

Very nice indeed Jeanette, well done.

Leon

[RickS (Rick)]

Lovely image, JJJ!

[algwat (Alan)]

That is a good result on the tail details.
If your not actually doing any scientific type measurements with your images, you should feel free to push those pixels around as much as you like.

kind regards, Alan

[jjjnettie (Jeanette)]

Originally Posted by algwat

That is a good result on the tail details.
If your not actually doing any scientific type measurements with your images, you should feel free to push those pixels around as much as you like.

kind regards, Alan

With the PACA and CIOC groups, we've never been told not to push/stretch our images. How else would you be able to reveal the full extent of the coma or tail? It isn't unusual to have a totally blown out, "equalized" image submitted.
Pretty images are nice, but they're looking for "real" data.

[Derek Klepp]

Great pic

[algwat (Alan)]

Yes, I agree the those groups need good data from amateur images.

Kevin Parker's recent well balanced image, balanced on the star images gives good magnitude and even some spectral data. The physical structure and its extent can be increased in stretched images, like those of RobK for the previous big Lovejoy comet. Tail distance increased and could be directly compared to those seen in STEREO images. So, while some intensity and spectral info maybe lost by stretching positional and structural info is made more apparent. And when a sequence is made dynamic elements can be shown.

kind regards, Alan

[Nightskystargaz (Thomas)]

Jeanette,

Very good image of Comet 2014 Q2 on Nov.30th .

CS,KLU,

,

Tom