Search found 126 matches
- Sun Apr 21, 2024 11:07 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Perijove 16: Passing Jupiter (2024 Apr 21)
- Replies: 15
- Views: 745
Re: APOD: Perijove 16: Passing Jupiter (2024 Apr 21)
. . 2. What does this mean: The movie is a reconstruction of the 114 minutes between 2018-10-29T20:35:00.000 and 2018-10-29T22:29:00.000 in 125-fold time-lapse. It is based on 21 of the JunoCam images taken, and on spacecraft trajectory data provided via SPICE kernel files. In steps of five real-ti...
- Sun Apr 14, 2024 12:19 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Palm Tree Partial Eclipse (2024 Apr 13)
- Replies: 11
- Views: 767
Re: APOD: Palm Tree Partial Eclipse (2024 Apr 13)
DanielCuriousLayman : Thanks for you comments about PNG, JPEG, etc. I find them and other replies very helpful.
- Thu Jan 04, 2024 2:00 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Zeta Oph: Runaway Star (2024 Jan 04)
- Replies: 22
- Views: 7606540
Re: APOD: Zeta Oph: Runaway Star (2024 Jan 04)
Ann - Many thanks for all the colorful runaway star pictures and the descriptions!
Brian
Brian
- Tue Dec 19, 2023 12:50 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: The Same Color Illusion (2023 Dec 18)
- Replies: 52
- Views: 66025
Re: APOD: The Same Color Illusion (2023 Dec 18)
Similar to using Color Picker, I used a "Replace Color" routine. Replace any Area A color (+/- alittle) with bright blue. Here is the results on my computer monitor. Not just the darker looking squares, but some bleed over into white squares in the "shadow" of the cylinder. https...
- Tue Nov 28, 2023 10:59 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Ganymede from Juno (2023 Nov 28)
- Replies: 27
- Views: 10821
Re: APOD: Ganymede from Juno (2023 Nov 28)
I noticed Ganymede bulge about the 11 o'clock position. One link I found https://phys.org/news/2015-04-jupiter-moon-ganymede-large-bulge.html includes "As noted by National Geographic, the bulge, or protuberance, is approximately the size of Ecuador and about half the height of Mount Kilimanjar...
- Thu Oct 19, 2023 12:56 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: A Sunrise at Sunset Point (2023 Oct 19)
- Replies: 17
- Views: 12897
Re: APOD: A Sunrise at Sunset Point (2023 Oct 19)
Great picture of the eclipse and Bryce Canyon! I found three groups of other eclipse watchers in the full-size photo. Could be more.
- Wed Oct 04, 2023 4:04 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: IC 2118: The Witch Head Nebula (2023 Oct 04)
- Replies: 8
- Views: 7730
Re: APOD: IC 2118: The Witch Head Nebula (2023 Oct 04)
Ann: Thanks for showing the previous APOD with Rigel in the picture. Also thanks for Witch Head Nebula labels. Seems to me that the more detailed pictures/information we have now makes it difficult to see the shapes folks saw in the past.
- Tue Sep 12, 2023 1:11 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Galaxy Cluster Abell 370 and Beyond (2023 Sep 12)
- Replies: 28
- Views: 14940
Re: APOD: Galaxy Cluster Abell 370 and Beyond (2023 Sep 12)
The larger APOD image (click on the image a couple of times) is very busy. Lots of light sources with diffraction spikes, galaxies everywhere, lensed (stretched) sources abound.
- Sat May 13, 2023 11:17 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Apollo 17: The Crescent Earth (2023 May 13)
- Replies: 9
- Views: 3110
Re: APOD: Apollo 17: The Crescent Earth (2023 May 13)
Does anyone know which part of the earth are we seeing in that sunlit crescent?? Or which side is north? According to info about the picture, it was taken on Dec. 17,1972 23:00 UTC. The Apollo 17 Timeline shows an astronaut doing a deep-space walk around that time. An article on the deep-space walk...
- Thu Mar 30, 2023 1:01 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: NGC 4372 and the Dark Doodad (2023 Mar 30)
- Replies: 22
- Views: 6051
Re: APOD: NGC 4372 and the Dark Doodad (2023 Mar 30)
The "Discuss" link is missing on my APOD page for today. https://apod.nasa.gov/apod/astropix.html
- Fri Mar 17, 2023 1:38 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: The Medusa Nebula (2023 Mar 17)
- Replies: 10
- Views: 2146
Re: APOD: The Medusa Nebula (2023 Mar 17)
Thanks Ann for this additional info and explanation. And for all your comments on other APODs!
- Wed Feb 15, 2023 1:49 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Airglow Sky over France (2023 Feb 15)
- Replies: 15
- Views: 5231
Re: APOD: Airglow Sky over France (2023 Feb 15)
Interesting that our observant humans here quickly picked up the misplaced Sirius. The ChatGPT AI that rewrote the APOD description apparently did not notice the error.
- Fri Jan 13, 2023 1:45 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Young Star Cluster NGC 346 (2023 Jan 13)
- Replies: 30
- Views: 6210
Re: APOD: Young Star Cluster NGC 346 (2023 Jan 13)
Thanks, AVAO! I found the slider views quite interesting!
- Tue Nov 22, 2022 12:45 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: The Butterfly Nebula from Hubble (2022 Nov 21)
- Replies: 16
- Views: 4251
Re: APOD: The Butterfly Nebula from Hubble (2022 Nov 21)
... This Butterfly system must have a very different mass distribution. Starduster2 posted this link earlier in this thread: For an image of the central star visit https://esahubble.org/images/ann0913a/ The image there is reversed from the APOD image btw. A sentence in that linked article reads &qu...
- Sun Aug 21, 2022 7:41 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: The Spinning Pulsar of the Crab Nebula (2022 Aug 21)
- Replies: 15
- Views: 4305
- Tue Aug 02, 2022 12:42 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: A Moon Dressed Like Saturn (2022 Aug 02)
- Replies: 14
- Views: 3756
Re: APOD: A Moon Dressed Like Saturn (2022 Aug 02)
+1gmPhil wrote: ↑Tue Aug 02, 2022 8:04 am Congrats to all at APOD for the prize - https://www.iau.org/news/pressreleases/detail/iau2206/!
- Sat Jul 23, 2022 3:43 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Apollo 11 Landing Panorama (2022 Jul 23)
- Replies: 21
- Views: 6579
Re: APOD: Apollo 11 Landing Panorama (2022 Jul 23)
A page from a NASA article about the cameras, film, etc.RocketRon wrote: ↑Sat Jul 23, 2022 7:00 am Was any special filtering required on the camera lens - the UV (and x-rays ?) would be ferocious ?
And for the humans ...
Link to the full article
https://www.hq.nasa.gov/alsj/a11/a11nssdc70-06.html
- Sat Jul 23, 2022 12:25 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Apollo 11 Landing Panorama (2022 Jul 23)
- Replies: 21
- Views: 6579
Re: APOD: Apollo 11 Landing Panorama (2022 Jul 23)
The "Assembled from high-resolution scans" link leads to an Apollo 11 Multimedia Library. Quite a photo documentation of the Apollo 11 event.
- Wed Apr 27, 2022 12:56 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Moon Shadow on Jupiter (2022 Apr 27)
- Replies: 16
- Views: 7615
Re: APOD: Moon Shadow on Jupiter (2022 Apr 27)
(... Is perhaps the neat circular shape of Jupiter in this picture an artifacts, a cropping or vignette of its full view?) Apparently, the picture is only showing a portion of Jupiter. Picture below is from a link in the APOD description. https://www.missionjuno.swri.edu/news/juno-captures-moon-sha...
- Sat Mar 19, 2022 1:18 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: 2MASS J17554042+6551277 (2022 Mar 19)
- Replies: 30
- Views: 15846
Re: APOD: 2MASS J17554042+6551277 (2022 Mar 19)
[quote=alter-ego post_ Clicking the 2MASS J17554042+6551277 link will take you to the SIMBAD data page for that star. There are several magnitudes for different spectral bands. [/quote] The SIMBAD data page does not show info for this star 2MASS J17554042+6551277. But at the bottom left of that page...
- Fri Mar 11, 2022 7:17 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Globular Star Cluster 47 Tuc (2022 Mar 10)
- Replies: 17
- Views: 7531
Re: APOD: Globular Star Cluster 47 Tuc (2022 Mar 10)
Ann, Quite a post about globular clusters. THANKS!
- Thu Mar 10, 2022 11:24 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Globular Star Cluster 47 Tuc (2022 Mar 10)
- Replies: 17
- Views: 7531
Re: APOD: Globular Star Cluster 47 Tuc (2022 Mar 10)
I found an article about the X9 black hole system indicating the white dwarf star velocity is 12 million kilometers/hour. That converts to about 2000 miles/second.
- Fri Jan 28, 2022 2:15 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Western Moon, Eastern Sea (2022 Jan 28)
- Replies: 10
- Views: 5457
Re: APOD: Western Moon, Eastern Sea (2022 Jan 28)
"Interesting point in passing about what's East and what's West on the moon. After a bit of searching, I found this article with some background info: https://the-moon.us/wiki/IAU_directions Thanks for the link. What a mapping mess - historical perspective, telescopic perspectives, exploration ...
- Fri Dec 31, 2021 2:32 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: JWST on the Road to L2 (2021 Dec 31)
- Replies: 27
- Views: 7625
Re: APOD: JWST on the Road to L2 (2021 Dec 31)
Edit - I see neufer just answered the question. I posted mine anyway. Can anyone explain whether space debris accumulates at the L-points and whether it could endanger the spacecraft? I originally understood the Webb to be targeted for an L-point along the line of the Earth's orbit, and thought in t...
- Thu Dec 23, 2021 1:50 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Three Planets and a Comet (2021 Dec 23)
- Replies: 13
- Views: 5704
Re: APOD: Three Planets and a Comet (2021 Dec 23)
I looked for the comet the evening of Dec. 16th. I probably saw it, but never could identify it. The planets were obvious and I knew about where to look. I was in a fairly dark area with a set of binoculars and a monocular, 10X to 15X.