Search found 13 matches
- Thu Jun 04, 2020 7:02 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: The Dance of Venus and Earth (2020 Jun 03)
- Replies: 28
- Views: 11757
Re: APOD: The Dance of Venus and Earth (2020 Jun 03)
Ann, it is not yet understood. When I was interested in the lower conjunction, I searched which region of Venus faces us, and the answer lies in the toponymy: Alpha Regio and Beta Regio (first regions perceived by radar images from Earth). There is however a difference of 4 hours and 5 minutes betwe...
- Thu Nov 28, 2019 8:28 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Hoag's Object: A Nearly Perfect Ring... (2019 Nov 27)
- Replies: 48
- Views: 22820
Re: APOD: Hoag's Object: A Nearly Perfect Ring... (2019 Nov 27)
The extended (Chandra) X-ray emission (shown below) from the Cartwheel galaxy to its small spiral galactic neighbor sure suggests a head-on collision. Note that the small spiral galactic neighbor looks like it might also be reverberating as a small ring-galaxy. So is the small ring galaxy in the Ho...
- Wed Nov 28, 2018 12:16 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: IC 1871: Inside the Soul Nebula (2018 Nov 28)
- Replies: 10
- Views: 3471
Re: APOD: IC 1871: Inside the Soul Nebula (2018 Nov 28)
Why are there no Proplyds in the images of the Soul nebula (or the Heart) ? Is it because the Perseus arm is too far for such images ?
- Wed Oct 17, 2018 12:10 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Jupiter in Ultraviolet from Hubble (2018 Oct 16)
- Replies: 18
- Views: 5624
- Wed Sep 12, 2018 8:33 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Lunations (2018 Sep 12)
- Replies: 27
- Views: 7715
Re: APOD: Lunations (2018 Sep 12)
Earthshine is missing, isn't it ? Our displays are incapable of simultaneously displaying Earthshine and the illuminated part of the Moon. There's far too much dynamic range. It is possible, of course, to distort the brightness curve in such a way that both are shown, but presumably they chose to s...
- Wed Sep 12, 2018 3:12 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Lunations (2018 Sep 12)
- Replies: 27
- Views: 7715
Re: APOD: Lunations (2018 Sep 12)
Earthshine is missing, isn't it ?
- Tue Jul 24, 2018 9:16 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Fermi Science Finals (2018 Jul 23)
- Replies: 13
- Views: 6764
- Wed May 16, 2018 12:21 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Rotation of the Large Magellanic Cloud (2018 May 16)
- Replies: 39
- Views: 30007
Re: APOD: Rotation of the Large Magellanic Cloud (2018 May 16)
So glad about gaia's data. However, one of the sentences seems to be outdated information "The LMC [...] is a spiral galaxy that has been distorted by encounters with the greater Milky Way Galaxy and the lesser Small Magellanic Cloud." Recently, I read some articles about the past encount...
- Wed May 16, 2018 6:16 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Rotation of the Large Magellanic Cloud (2018 May 16)
- Replies: 39
- Views: 30007
Re: APOD: Rotation of the Large Magellanic Cloud (2018 May 16)
So glad about gaia's data. However, one of the sentences seems to be outdated information "The LMC [...] is a spiral galaxy that has been distorted by encounters with the greater Milky Way Galaxy and the lesser Small Magellanic Cloud." Recently, I read some articles about the past encounte...
- Thu Mar 15, 2018 5:30 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Catalog Entry Number 1 (2018 Mar 15)
- Replies: 12
- Views: 37276
Re: APOD: Catalog Entry Number 1 (2018 Mar 15)
Do you know the stories of these first ? I only know that M1 is because Messier had mistaken the Crabe nebula for the Halley's comet. (And that this location is close to where was Uranus when Herschel discovered it.)
- Tue Mar 13, 2018 3:21 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: The Complete Galactic Plane: Up and Down (2018 Mar 13)
- Replies: 15
- Views: 41054
Re: APOD: The Complete Galactic Plane: Up and Down (2018 Mar 13)
That fifth sentence is a dooozy! Sorry, it was poorly expressed. The text in brackets is about objects in the lower part of the image that we dont see from the northern hemisphere. (and I mentioned the omega centauri in the sentence about the center because it is the most recognizable object of thi...
- Tue Mar 13, 2018 11:36 am
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: The Complete Galactic Plane: Up and Down (2018 Mar 13)
- Replies: 15
- Views: 41054
Re: APOD: The Complete Galactic Plane: Up and Down (2018 Mar 13)
rodentooth, the center of the Galaxy seems hidden by the mountains on the right. The bright spot under the mountains to the right is probably omega centauri. Maybe the anticenter is visible on the left, under the mountains, because orion seems quite low. The mountains are almost at the place of the ...
- Sat Mar 10, 2018 12:46 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Phases of the Moon (2018 Mar 10)
- Replies: 7
- Views: 34225
Re: APOD: Phases of the Moon (2018 Mar 10)
If my comment about the lunar X is connected to the image of this day, I am sincerely grateful