Search found 110 matches
- Thu Sep 16, 2004 4:02 am
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: meteor detection
- Replies: 10
- Views: 4897
Tilvi, This sounds great, and very important too. I have the following comments: 1. I believe that the light curve should be different for almost each meteor. The reason is that unlike stars, the light curve of a meteor is affected by the angle of the meteor towards the camera. For instance, if the ...
- Tue Sep 14, 2004 3:30 pm
- Forum: Starship Asterisk: Handbook
- Topic: New! APOD software
- Replies: 125
- Views: 275353
Re: Problems on Windows 2000 Professional
Thanks, this is just what I've been looking for. Unfortunately, when I try to use it on Windows 2000 Professional, it installs fine, but the little wallpaper window shows only the words "Astronomy Picture of the Day" and a link to the Explanation, without showing the picture itself. If I ...
- Tue Sep 14, 2004 3:22 am
- Forum: Starship Asterisk: Handbook
- Topic: New! APOD software
- Replies: 125
- Views: 275353
Our software (downloaded from nightskylive.net domain) is perfectly clean from spyware, adware or badware of any kind, and is not hacked in any way. Being aware of the fact that some web sites have listed this software, we strongly recommend to download the software from the nightskylive.net domain ...
- Mon Sep 13, 2004 12:42 pm
- Forum: Starship Asterisk: Handbook
- Topic: New! APOD software
- Replies: 125
- Views: 275353
New! APOD software
A new APOD software is available for Astronomy Picture of the Day fans. This software automatically brings Astronomy Picture of the Day to the desktop, along with the picture explanation. It is usefull, and also sets a new beautiful astronomy wallpaper every day. Of course, it is free, and does not ...
- Mon Sep 13, 2004 12:23 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: Lewin's Challenge Image
- Replies: 332
- Views: 144378
gpp wrote:I think the explanation is below:
http://www.wolkenatlas.de/wolken/wo06947.htm
Rgds,
GPP 8)
And there is an English version right here:
http://antwrp.gsfc.nasa.gov/apod/ap020417.html
- Sun Sep 12, 2004 5:28 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Haleakala (HL) CONCAM status
- Replies: 47
- Views: 46719
It seems that we have some moisture problems:
http://nightskylive.net/hl/hl040912/hl0 ... 35550p.jpg
Nothing unexpected about that. Some stations like Siding Spring and Canary Islands use domes to protect the stations from getting wet.
http://nightskylive.net/hl/hl040912/hl0 ... 35550p.jpg
Nothing unexpected about that. Some stations like Siding Spring and Canary Islands use domes to protect the stations from getting wet.
- Thu Sep 09, 2004 1:58 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: More strange CI streaks
- Replies: 1
- Views: 2469
- Wed Sep 08, 2004 2:38 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Kitt Peak (KP) CONCAM status
- Replies: 30
- Views: 22015
- Tue Sep 07, 2004 11:11 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Kitt Peak (KP) CONCAM status
- Replies: 30
- Views: 22015
- Tue Sep 07, 2004 11:09 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Haleakala (HL) CONCAM status
- Replies: 47
- Views: 46719
- Mon Sep 06, 2004 11:16 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: FITS files
- Replies: 1
- Views: 3853
Vic, This problem is pretty well known. The storage capacity of the server is not unlimitted. We use a tower of scsi hard drives which is constantly being upgraded, but still cannot provide a much longer period than what is currently provided. I would suggest not to rely on the storage policy only, ...
- Mon Sep 06, 2004 11:09 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Two unidentified streaks on recent Siding Spring image
- Replies: 1
- Views: 2252
- Thu Sep 02, 2004 2:25 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: South Africa (SA) CONCAM status
- Replies: 12
- Views: 10478
- Wed Sep 01, 2004 4:10 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: star catalogue
- Replies: 19
- Views: 8747
Re: Variability check
Tilvi, Algol (beta Per) would be a much better target because it is not so bright, and the variability amplitude is much larger. Algol varies between 2.2 and 3.5, the eclipses are deep with a period of 68 hours and 49 minutes and the width of the primary eclipse is about 8 hours. NoahBrosch It is a...
- Tue Aug 31, 2004 1:42 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: South Africa (SA) CONCAM status
- Replies: 12
- Views: 10478
- Mon Aug 30, 2004 1:52 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: cosmic ray detection in dark frames
- Replies: 2
- Views: 4494
Comparing two frames might be effective, but as you mentioned, we might loose meteors. Since in most cases we can easily tell if a PSF is a cosmic ray hit or a true astronomical object, I believe this can also be done by machines. The current algorithm has a high level of accuracy (much more than 90...
- Tue Aug 24, 2004 8:59 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: cosmic ray detection in dark frames
- Replies: 2
- Views: 4494
cosmic ray detection in dark frames
Cosmic rays can be very annoying also in dark frames. The problem is that they might cause changes in the counts in the subtracted dark frames. We have now a cosmic ray detection mechanism that is about to be completed. This mechanism can be used in order to eliminate cosmic rays not only from the l...
- Mon Aug 23, 2004 1:30 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Building the Super-CONCAM
- Replies: 4
- Views: 5834
In order to take shorter frames and still maintain the 3:56 cycles, it is optional to perform exposure of around 1:50. This is not possible with our current SBIG CCD model, but a USB interface should allow this for the newer models. In this case, we might need a faster processor in order to make it ...
- Fri Aug 20, 2004 3:09 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: CONCAM network settings and requirements
- Replies: 0
- Views: 3659
CONCAM network settings and requirements
In order to connect a concam node to the NSL network, a static IP that is publicly visible is should be assigned to the CONCAM computer. In order to operate the system, the firewall (if one is used) should open ports for ssh and scp (used for file transfering to the server). If ssh or scp cannot wor...
- Thu Aug 12, 2004 2:08 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Find the Perseid
- Replies: 27
- Views: 26148
- Wed Aug 11, 2004 3:14 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Find the Perseid
- Replies: 27
- Views: 26148
Here is another one
http://nightskylive.net/mk/mk040811/mk040811ut145459p.jpg This is a much clearer one with a longer tail coming directly from Pereseus, captured by a 20 second exposure frame (what makes it possibly fainter?) Unlike the one above, examining the fits frame shows that this one flashes first, and than ...
- Mon Aug 09, 2004 6:42 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Zet Crb possibly changes magnitude?
- Replies: 2
- Views: 2991
Zet Crb possibly changes magnitude?
WOLF has just started to analyze magnitude changes in CI, and with the addition of the cosmic rays elimination the output seems to be effective. Checking the output might be a time-consuming task, but I hope that this application will turn to be cost-effective overall, since the probablity for disco...
- Mon Aug 09, 2004 6:03 am
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Software update in Canary Islands
- Replies: 0
- Views: 3957
Software update in Canary Islands
Few months ago, we implemented an algorithm for automatic luminance changes in Canary Islands CONCAM. The main problem with the algorithm that cosmic rays gave too much noise. Recently, a new fuzzy-logic based algorithm for cosmic rays detection has been implemented. It is not fully optimized yet, b...
- Mon Aug 09, 2004 5:55 am
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Canary Island (CI) CONCAM status
- Replies: 17
- Views: 13974
Re: Canary Island (CI) CONCAM status
No. Both stations are currently running, and have been running very well in the last few months. I don't see any problem with these two.tilvi wrote:13:45 East; Aug 08.RJN wrote:The Canary Island (CI) CONCAM3 has been running very well since the start of 2004.
Is CI and KP down?
- Sat Aug 07, 2004 11:17 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Software wish list: VRML module for NSL FITS data
- Replies: 1
- Views: 5226
VRML module
These guys implemented a similar application for their astronomical images. I will look more into it to find the details of how they did it.
[/url]
[/url]