Search found 636 matches
- Thu Nov 17, 2022 10:13 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: In the Arms of NGC 1097 (2022 Nov 16)
- Replies: 16
- Views: 4437
Re: APOD: In the Arms of NGC 1097 (2022 Nov 16)
Thanks. I still barely see it, or what I think is it - is it #4 or #5 in my image below? Perhaps the one that extends #1's trail through the nucleus is just wishful thinking on my part. And that's quite a voluminous explanation of how they formed in that lengthy paper! I'll have to look at it more ...
- Thu Nov 17, 2022 11:54 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: In the Arms of NGC 1097 (2022 Nov 16)
- Replies: 16
- Views: 4437
Re: APOD: In the Arms of NGC 1097 (2022 Nov 16)
...the fourth arm is so faint I can't discern it... https://cfn-live-content-bucket-iop-org.s3.amazonaws.com/journals/0004-637X/826/1/50/revision1/apjaa2768f1_lr.jpg?AWSAccessKeyId=AKIAYDKQL6LTV7YY2HIK&Expires=1669241766&Signature=iw%2B5ZKYjB5wq3zZhn%2BB6qENMdc0%3D https://iopscience.iop.or...
- Wed Nov 16, 2022 10:18 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: In the Arms of NGC 1097 (2022 Nov 16)
- Replies: 16
- Views: 4437
Re: APOD: In the Arms of NGC 1097 (2022 Nov 16)
...the fourth arm is so faint I can't discern it... https://cfn-live-content-bucket-iop-org.s3.amazonaws.com/journals/0004-637X/826/1/50/revision1/apjaa2768f1_lr.jpg?AWSAccessKeyId=AKIAYDKQL6LTV7YY2HIK&Expires=1669241766&Signature=iw%2B5ZKYjB5wq3zZhn%2BB6qENMdc0%3D https://iopscience.iop.or...
- Wed Nov 16, 2022 9:29 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: In the Arms of NGC 1097 (2022 Nov 16)
- Replies: 16
- Views: 4437
Re: APOD: In the Arms of NGC 1097 (2022 Nov 16)
a pair of jets seem to blow from the centre in the opposite directions. Can they have formed at the tracks of the black hole's jets? I would basically follow your reasoning. The axis runs extremely precisely through the galaxy core. I really don't think this is supposed to be random. https://live.s...
- Tue Nov 08, 2022 6:15 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Galaxies: Wild's Triplet from Hubble (2022 Nov 08)
- Replies: 21
- Views: 4286
Re: APOD: Galaxies: Wild's Triplet from Hubble (2022 Nov 08)
https://apod.nasa.gov/apod/calendar/S_221108.jpg Galaxies: Wild's Triplet from Hubble ... This grouping of galaxies is called the Wild Triplet , not only for the discoverer , but for the number of bright galaxies that appear. It had been assumed that all three galaxies , collectively cataloged as A...
- Mon Oct 31, 2022 7:13 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: LDN 43: The Cosmic Bat Nebula (2022 Oct 31)
- Replies: 16
- Views: 4452
Re: APOD: LDN 43: The Cosmic Bat Nebula (2022 Oct 31)
...I like bats too in infrared... :evil: https://live.staticflickr.com/65535/52467296613_676e6d0bcf_c.jpg https://live.staticflickr.com/65535/52467296613_0ee5e6270b_o.jpg jac berne (flickr) ... and the closeup of the young central star (RNO 91 rotated 180 degrees) by Judy. https://live.staticflickr....
- Sat Oct 29, 2022 5:10 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: LDN 673: Dark Clouds in Aquila (2022 Oct 29)
- Replies: 5
- Views: 2717
Re: APOD: LDN 673: Dark Clouds in Aquila (2022 Oct 29)
...In the scene, visible indications of energetic outflows associated with young stars include the small red tinted nebulosity RNO 109 above and right of center, and Herbig-Haro object HH32 below. ... If you follow the link of HH32 there is written: "HH 32 is an excellent example of a 'Herbig-...
- Sat Oct 29, 2022 4:43 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: LDN 673: Dark Clouds in Aquila (2022 Oct 29)
- Replies: 5
- Views: 2717
Re: APOD: LDN 673: Dark Clouds in Aquila (2022 Oct 29)
...In the scene, visible indications of energetic outflows associated with young stars include the small red tinted nebulosity RNO 109 above and right of center, and Herbig-Haro object HH32 below. ... If you follow the link of HH32 there is written: "HH 32 is an excellent example of a 'Herbig-...
- Wed Oct 26, 2022 5:34 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Cocoon Nebula Wide Field (2022 Oct 26)
- Replies: 5
- Views: 2485
Re: APOD: Cocoon Nebula Wide Field (2022 Oct 26)
....Does this show a direction that the Cocoon is moving? Very good question, Orin! Comparing with the 2002 APOD (2002 October 14) photo we can see that smaller stars are primarily moving along the two main filaments (dark outflow streams towards 11 and 5 o'clock on todays APOD) of the central star...
- Sat Oct 22, 2022 2:41 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: NGC 1499: The California Nebula (2022 Oct 22)
- Replies: 13
- Views: 3410
Re: APOD: NGC 1499: The California Nebula (2022 Oct 22)
https://www.adamblockphotos.com/uploads/4/4/2/5/44258693/ic-348-dsws_1.jpg IC 348 near Omicron Persei is the only site of star formation in constellation Perseus, at least to my knowledge, and it may be the center of Perseus OB2. Xi Persei may have been born not far from IC 348 and then received a ...
- Sat Oct 22, 2022 1:29 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: NGC 1499: The California Nebula (2022 Oct 22)
- Replies: 13
- Views: 3410
Re: APOD: NGC 1499: The California Nebula (2022 Oct 22)
Why isn't there a red glow at the Pleiades? Like Xi Persei, these are very bright and also radiate strongly in the X-ray. The Pleiades are way too cool to ionize a red emission nebula! The brightest and hottest of them are spectral classes B6-B8. That is to say that their temperatures are likely be...
- Sat Oct 22, 2022 8:37 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: NGC 1499: The California Nebula (2022 Oct 22)
- Replies: 13
- Views: 3410
Re: APOD: NGC 1499: The California Nebula (2022 Oct 22)
But, okay! I should have clicked on all the links in today's APOD caption to find the best portrait of the California Nebula, the Pleiades and IC 348. Here it is, by Rogelio Bernal Andreo! :D https://apod.nasa.gov/apod/image/1311/2013-11_C2P_950px.jpg Ann Why isn't there a red glow at the Pleiades?...
- Mon Oct 17, 2022 5:10 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: X-Ray Rings Around a Gamma Ray Burst (2022 Oct 17)
- Replies: 8
- Views: 3273
Re: APOD: X-Ray Rings Around a Gamma Ray Burst (2022 Oct 17)
https://apod.nasa.gov/apod/calendar/S_221017.jpg X-Ray Rings Around a Gamma Ray Burst Explanation: Why would x-ray rings appear around a gamma-ray burst? The surprising answer has little to do with the explosion itself but rather with light reflected off areas of dust -laden gas in our own Milky Wa...
- Sun Oct 16, 2022 6:25 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Barred Spiral Galaxy NGC 1300 (2022 Oct 16)
- Replies: 19
- Views: 5547
Re: APOD: Barred Spiral Galaxy NGC 1300 (2022 Oct 16)
NGC 1300 is interesting for several reasons. Obviously for the enormous length of its bar. But it is interesting for other reasons, too. For one thing, the entire galaxy is really faint, apart from its nuclear region: ... Searching the web, I found another picture that showed NGC 1300 in much the s...
- Thu Oct 13, 2022 6:21 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Dust Shells around WR 140 from Webb (2022 Oct 13)
- Replies: 18
- Views: 5590
Re: APOD: Dust Shells around WR 140 from Webb (2022 Oct 13)
....So nobody quite knows what is going on with WR 140, although the shells clearly form as a consequence of the two components of the binary star passing close to one another. Their strong winds affect the dust that is produced by WR 140. ... Ann ... news from yesterday ... https://phys.org/news/2...
- Wed Oct 05, 2022 7:19 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Expanding Plume from DART's Impact (2022 Oct 05)
- Replies: 14
- Views: 12167
Re: APOD: Expanding Plume from DART's Impact (2022 Oct 05)
What’s up with this? The video as posted is too large to fit on my screen, so I chose Watch on YouTube, but all I get are right wing propaganda shorts. That's right! Please correct... Original source of the video: https://www.esa.int/ESA_Multimedia/Videos/2022/09/DART_asteroid_impact_impresses_in_E...
- Thu Sep 29, 2022 4:49 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: DART Asteroid Impact from Space (2022 Sep 29)
- Replies: 15
- Views: 4673
Re: APOD: DART Asteroid Impact from Space (2022 Sep 29)
https://apod.nasa.gov/apod/calendar/S_220929.jpg DART Asteroid Impact from Space Explanation: Fifteen days before impact, the DART spacecraft deployed a small companion satellite to document its historic planetary defense technology demonstration. Provided by the Italian Space Agency, the Light Ita...
- Sun Sep 25, 2022 9:05 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Ringed Ice Giant Neptune (2022 Sep 23)
- Replies: 25
- Views: 3776
Re: APOD: Ringed Ice Giant Neptune (2022 Sep 23)
Probably it's SDSS J234356.99-030230.7 ((α, δ) = (23 43 57, -03 02 31)). I can confirm that! Interesting: The image below shows that a survey of Jupiter was previously made with Hubble at almost the same position. The fact that Jupiter (HST) appears about 6 times too large compared to the image of ...
- Sat Sep 24, 2022 8:00 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Ringed Ice Giant Neptune (2022 Sep 23)
- Replies: 25
- Views: 3776
Re: APOD: Ringed Ice Giant Neptune (2022 Sep 23)
I very much wanted to know the designation of the lovely barred spiral galaxy in the lower left corner, but I have found no information on it. Probably it's SDSS J234356.99-030230.7 ((α, δ) = (23 43 57, -03 02 31)). I can confirm that! Interesting: The image below shows that a survey of Jupiter was...
- Fri Sep 23, 2022 6:07 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Ringed Ice Giant Neptune (2022 Sep 23)
- Replies: 25
- Views: 3776
Re: APOD: Ringed Ice Giant Neptune (2022 Sep 23)
https://apod.nasa.gov/apod/calendar/S_220923.jpg Ringed Ice Giant Neptune To me, the wide field view is much more impressive than the close-up. Here you see the last planet of OUR solar system IN THE UNIVERSE! https://cdn.esawebb.org/archives/images/screen/weic2214d.jpg ZOOOOOMABLE: https://esawebb...
- Thu Sep 22, 2022 10:07 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: NGC 7331 Close Up (2022 Sep 22)
- Replies: 17
- Views: 2701
Re: APOD: NGC 7331 Close Up (2022 Sep 22)
... I can't help it though, my favorite portrait of NGC 7331 is this picture by Vicent Peris: ... Ann ... and my favorite NGC 7331 in IR (Spitzer ST): ... and a nice target for JWST ;-) https://www.spitzer.caltech.edu/published/system/articles/images/167/original/ssc2004-12-ws-tn.jpg?1596837391 htt...
- Tue Sep 20, 2022 8:47 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Star Forming Region NGC 3582 without... (2022 Sep 20)
- Replies: 4
- Views: 1662
Re: APOD: Star Forming Region NGC 3582 without... (2022 Sep 20)
APOD Robot wrote: By digitally removing the stars, this re-assigned color image showcases dense knots of dark interstellar dust, fields of glowing hydrogen gas ionized by these stars, and great loops of gas expelled by dying stars . I doubt that those great loops were made by dying stars. To me, it...
- Fri Sep 16, 2022 12:05 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: The Tarantula Zone (2022 Sep 16)
- Replies: 11
- Views: 2600
Re: APOD: The Tarantula Zone (2022 Sep 16)
... Congratulations to the dream team of the two creators. The picture is so visually stunning and yet detailed, I'm speechless! the site of the closest supernova in modern times, SN 1987A, at lower right please, can anybody point that remnant ... almost starless ... https://live.staticflickr.com/65...
- Thu Sep 15, 2022 5:29 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Waves of the Great Lacerta Nebula (2022 Sep 14)
- Replies: 8
- Views: 2217
Re: APOD: Waves of the Great Lacerta Nebula (2022 Sep 14)
Thanks, AVAO, but groan! "Markarian 914" doesn't sound like a star to me. I asked Simbad Astronomical Database to take me to Markarian 914, and this is what it said to me: It's a galaxy! I found your source for the Lick Hα 233 (Markarian 914) thing. It is this: Taniguchi et al. wrote: The...
- Wed Sep 14, 2022 9:03 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Waves of the Great Lacerta Nebula (2022 Sep 14)
- Replies: 8
- Views: 2217
Re: APOD: Waves of the Great Lacerta Nebula (2022 Sep 14)
So that strange gray translucent thing protruding into the red Lacerta nebula is the end part of a long dust lane, then? I guess it has been truncated and has had its end part flare out into an arc, almost like a sausage, because of the stellar winds of 10 Lacerta. Ann ThanX Ann I'm unsure about th...