New nova in delphinus
Posted 09 September 2013 - 12:05 PM
Posted 09 September 2013 - 10:01 PM
Posted 10 September 2013 - 03:28 AM
couple of times. Here is what I took this evening.
10 X 30 seconds @ ISO 800 with modded 450D DSLR and
PowerNewt @ F 2.8 No processing done other than crop from
Posted 10 September 2013 - 11:17 AM
Posted 10 September 2013 - 11:22 AM
I did an entire summers worth of SS cygni a few years ago, caught three bursts... I never did do the animation!
Posted 11 September 2013 - 04:55 AM
Posted 12 September 2013 - 08:00 AM
I have been following the nova in spectroscopy with an Alpy 600 spectrograph on a small 85mm refractor since the begining. Weather is getting poor here but I have done some animation/graphs showing the changes.
2D color spectral evolution:
ARAS forum includes spectral observations from about 35 observers and multiple spectrographs with multiple resolution. Those spectra with scientifical interest are archived on ARAS database (more than 600 spectra) and are available for download so you can have a look at my spectra FITS file there:
There is also an ARAS web page with explanation from Steve Shore, a professional astronomer who is helping us to better understand the astrophysics behind the scene. I have really enjoyed his explanations so far... :-)
This is really an exceptionnal object to follow up, specially in spectroscopy!
Posted 12 September 2013 - 12:37 PM
Posted 12 September 2013 - 07:44 PM
Posted 15 September 2013 - 04:47 PM
7.6 at 8 UT on 9/6/13
7.4 at 8:10 UT on 9/11/13
7.7 at 5:30 UT on 9/15/13
Last night I observed the nova with 7x50 binos, 9x50 finder and at 51x in my 10" f/6 newt. In the newt it had a red color which wasn't seen in the finder or binos. It's amazing how fast these changes occur. When the nova was brightest, I saw it's color as yellow.
Posted 20 September 2013 - 07:59 AM
Posted 23 September 2013 - 12:33 AM
I have followed this nova for the past month because it is the first one I have ever seen. I finally got a chance this evening to observe it to see its color. It is red indeed as the spectrum in the last posting on this thread shows.
However, I was expecting it to be an even a deeper red. Can these novae appear like carbon stars when fading, at least part of the cycle? I sure would like someone else to answer this question.
Observing this object brings back memories when I had a chance in 1975 to see Nova Cygni. It was so notable an event our local weatherman one evening on television said there was a new star in the heavens. Unfortunately, he provided no chart to find it. Lack of current information (no internet in those days) available caused me to miss seeing it. If I only had been patient and used a star chart I could have easily seen it since it was so bright and near Deneb. I hope to live to see one that bright again.
Posted 23 September 2013 - 02:20 AM
It is around magnitude 8.
Posted 23 September 2013 - 09:47 AM
Might be a long wait. Although they occur quite randomly, there has been a decided lack of novae of 1st magnitude or brighter since the early 1940's. In fact, Nova Cygni in '75 is the sole example since I started observing back in the mid 1950's!
Posted 23 September 2013 - 09:23 PM
Nova Del 2013 O210 24 September UT ~7.8 mag seeing and transparency above average. No moon. 12x36 IS II binoculars. No color noted at this magnification.
Posted 24 September 2013 - 09:40 PM
Posted 25 September 2013 - 02:01 AM
9/25/2013 18:25UT V=8.2
BTW, here is the nova light curve based on my observations. One can clearly see a change in the trend:
Posted 25 September 2013 - 05:24 AM
About 3 weeks since may last observation. My estimate tonight with my 90mm was 8.2 with comp stars 80 and 82, 9/25/13 at 2:00 UT. I didn't notice any red color that some have reported.
Observed N Del 2013 last evening (9/24) and estimated its mag at 8.0. I did take a good look at the nova with my 10" refl and at 38x I didn't see any color but when I increased magnification to 76x N Del took on a pale orange color.
Posted 26 September 2013 - 02:32 PM
9/26/2013 18:55UT V=8.5
Posted 26 September 2013 - 09:48 PM
Posted 27 September 2013 - 12:46 AM
Posted 03 October 2013 - 07:03 AM
Posted 04 October 2013 - 05:18 AM
Posted 04 October 2013 - 04:42 PM
10 X 30 seconds at ISO 800 / modded Canon 450D / PowerNewt
at F 2.8 No processing other than RAW to TIFF conversion,
crop and stacking.
Still looks red but dimmer than my last posted image.
Posted 05 October 2013 - 11:58 AM
CPC1100 at ~F5.5 - Mallincam Xtreme 1 single 60 second exposure. No processing, just a screen capture.