Search found 49 matches
- Thu Jul 28, 2005 3:19 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: Moderatorship or Censorship?
- Replies: 30
- Views: 12504
- Sat Jul 16, 2005 3:02 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: too many Reflections on the Inner Solar System
- Replies: 5
- Views: 4082
Re: too many Reflections on the Inner Solar System
christopher antonsen wrote:anyway, there are 3 major celestial bodies reflected, but only the moon and Mercury in the sky!
![Image](http://boldra.com/images/westlake_zoom.jpg)
Are you talking about these lights below the moon? They are also the moon, reflected again because of ripples on the water.
Boldra
- Fri Jul 08, 2005 8:09 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: Tommorow's APOD (Deep Impact)
- Replies: 11
- Views: 6349
Re: Deep Impact Timing
Face-to-Face With a Comet Six minutes to impact The alt text on that image says "sixty seconds to impact". I don't know how many people rely on the alt text though; it's supposed to be for people who can't see the image. Why would you be interested in the site if you can't see the image? ...
- Tue Jun 28, 2005 2:13 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD 20050628 - "false colour"
- Replies: 3
- Views: 3846
APOD 20050628 - "false colour"
I found the usage of "false colour" in todays APOD somehow incongruent... Surely it's enough to say that there are radio waves visible in the above image without saying that they're falsely coloured? What colour do people think radio waves are anyway? I realise this kind of thing can cause...
- Mon Jun 27, 2005 5:54 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD of June 16, 2005, Vermeer's Astronomer and Geographer
- Replies: 14
- Views: 9785
sombrero
If I'd seen this thread earlier I'm sure I'd have picked the non-rings picture! After all it's been my background image since it appeared on APOD...
Boldra
Boldra
- Mon Apr 11, 2005 11:16 am
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Siding Spring (SD) CONCAM status
- Replies: 22
- Views: 17074
up and down
Up and down again a lot last week. Currently down.
Boldra
Boldra
- Sun Apr 03, 2005 7:40 am
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Siding Spring Black Blob
- Replies: 4
- Views: 6085
- Sat Apr 02, 2005 6:44 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Siding Spring Black Blob
- Replies: 4
- Views: 6085
Siding Spring Black Blob
http://nightskylive.net/sd/sd050401/sd050401ut141135a.jpg Again, shortly after being repaired, Siding Springs is showing black things very close to the camera. My first guess is that it's a moth, but it was largely still for the better part of an hour. Check out the archive http://nightskylive.net/...
- Tue Mar 29, 2005 5:41 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Siding Spring (SD) CONCAM status
- Replies: 22
- Views: 17074
jinxed by Noctuas again
Yes, yesterday it worked, today it's broken. The camera failed to switch on today (29th). It's now showing the last pic from 28/3/5, which is munged: http://nightskylive.net/sd/thumbnail08.jpg As I mentioned yesterday, it's not the only case of this kind of munging. There were some munged pictures i...
- Mon Mar 28, 2005 8:42 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Siding Spring (SD) CONCAM status
- Replies: 22
- Views: 17074
status 20-28 March 2005
Siding Spring has been ok for the past week, producing lots of pictures of the moon. There's been a couple of recurrences of the "history subtraction" bug, ( http://nightskylive.net/sd/sd050328/sd050328ut181210a.jpg , http://nightskylive.net/sd/sd050325/sd050325ut141135a.jpg), but only in ...
- Fri Mar 25, 2005 8:11 am
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Avoiding Sun Exposure
- Replies: 2
- Views: 4755
- Tue Mar 22, 2005 9:28 am
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: What is this black thing?
- Replies: 5
- Views: 5819
Alpha Pavonis
I checked the photometry data for Alpha Pavonis (http://nightskylive.net/sd/sd050319/HD193924.html), and the first measurement is at 17:52, at 36°. This strongly suggests my ID is correct!
Boldra
Boldra
- Mon Mar 21, 2005 9:54 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: What is this black thing?
- Replies: 5
- Views: 5819
How big is it?
As an mental exercise, I poked around in Starcalc ( http://www.m31.spb.ru/StarCalc/main.htm ), to identify some of the stars. I'm pretty sure that the circled star below is alpha pavonis : http://boldra.com/images/alpha_povis.png Which at 17:44 UT was 35° above the horizon. Using this angle, we can ...
- Mon Mar 21, 2005 11:05 am
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: What is this black thing?
- Replies: 5
- Views: 5819
I hadn't noticed the movement until I saw your comment, but I have three suggestions: o it's a tarp or a tent, set up quite near the camera. o it's a piece of paper very near the camera o it's a leaf. I think I've seen car headlights in this direction (south) on other pictures, so it could be someth...
- Sun Mar 20, 2005 5:46 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Siding Spring (SD) CONCAM status
- Replies: 22
- Views: 17074
Siding Spring working again
Siding Spring seems to be working again. It came online about midnight Saturday night (19/3), and something big and black was visible on the horizon. It's almost Monday morning local time (21/3)now. The black beast hasn't been back, and the pictures have been good. Noctuas - please don't look! Every...
- Thu Mar 17, 2005 9:51 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: the message
- Replies: 5
- Views: 4569
How a big an army
Thanks for the link Boern. I particularly liked this quote: At the right of the figure is another 32-bit number, this one about four billion, intended to give the approximate human population (back in 1974 --- it’s 6+ billion now). Aliens who correctly interpret this will know how large an army to s...
- Wed Mar 16, 2005 8:38 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: the message
- Replies: 5
- Views: 4569
colour
A good question about the colour Makc, the same thing occurred to me. RJN's posted this pic three times now ( http://antwrp.gsfc.nasa.gov/cgi-bin/apod/apod_search?message+earth ), always in colour, although the version on space.com is black and white. I suspect that the colour is only there for publ...
- Sat Mar 12, 2005 8:50 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: Strange similarity...
- Replies: 17
- Views: 14916
Nice investigative work. I gave up when I saw that RFC 977 was dated 1986. But apart from all that, there must have also been mailing lists, which could also be archived somewhere. Quite probably compressed and not indexed by the search engines, so I'm going to give up the search and just assume tha...
- Fri Mar 11, 2005 8:40 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: Strange similarity...
- Replies: 17
- Views: 14916
Big Geode
Here's a fairly typical geode you might see in a new age shop: http://www.geokring.nl/geode.jpg And then there's the Almeria geode in Spain http://home.freeuk.net/smk/caving/geode.htm which is so big you can crawl inside it. But back to the original topic, Makc. Did you notice that the second pictur...
- Thu Mar 10, 2005 5:49 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: Strange similarity...
- Replies: 17
- Views: 14916
That's no moon
Slashdot had a few good jokes about the similarity: http://science.slashdot.org/article.pl? ... 13&tid=160
Boldra
Boldra
- Wed Mar 09, 2005 12:09 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Siding Spring (SD) CONCAM status
- Replies: 22
- Views: 17074
Siding Springs back up
Siding Spring came back up late on the 7th and has been ok for two days now. Good pictures too.
Boldra
Boldra
- Tue Mar 01, 2005 11:16 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD 2005-02-28
- Replies: 5
- Views: 4678
What are you seeing
I've looked at this pic again since you mentioned it, but I don't see what you're seeing. Firstly, the light source is coming from the right, not the left. Secondly, I only see two craters (large) and not three as you said. Thirdly, what "two objects in the upper right"? Perhaps you could ...
- Mon Feb 28, 2005 9:23 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Siding Spring (SD) CONCAM status
- Replies: 22
- Views: 17074
dark frames
Thanks for the explanation - maybe we should cross-post it? Usually I don't read the threads about status of other cameras, and I assume people spotting other cameras don't read this thread. I still think one thread for all spotting wouldn't be a bad idea... Otherwise, an extra thread for general sp...
- Mon Feb 28, 2005 8:16 am
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Siding Spring (SD) CONCAM status
- Replies: 22
- Views: 17074
SD Going well
All going well for the past week, except for a couple of images with a lot of noise on them. It looks like a camera hardware problem to me. I don't think this is a serious problem itself, but it just may turn out to be an indicator of impending failure. Sunday 27th: http://nightskylive.net/sd/sd0502...
- Sun Feb 20, 2005 11:17 pm
- Forum: The Asterisk Café: Discuss Anything Astronomy Related
- Topic: Siding Spring (SD) CONCAM status
- Replies: 22
- Views: 17074
Siding Springs thumbs up
I can't see any recurrance of the "history subtraction" problem since the 18th. It looks like the problem has been solved and Siding Spring is working fine. Good work.
Boldra
Boldra