Search found 114 matches

by canopia
Thu Feb 29, 2024 9:08 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Julius Caesar and Leap Days (2024 Feb 29)
Replies: 24
Views: 26267

Re: APOD: Julius Caesar and Leap Days (2024 Feb 29)

APOD: The Leap Day tradition, this silver coin, I like it. :ssmile: Tunç Tezel Except in 2012 and 2008 which different pictures were featured! https://apod.nasa.gov/apod/ap120229.html https://apod.nasa.gov/apod/ap080229.html I see that 2008 picture is yours :) Have you added any more lunar eclipses...
by canopia
Thu Feb 29, 2024 6:45 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Julius Caesar and Leap Days (2024 Feb 29)
Replies: 24
Views: 26267

Re: APOD: Julius Caesar and Leap Days (2024 Feb 29)

APOD: The Leap Day tradition, this silver coin, I like it. :ssmile: :D

Tunç Tezel
by canopia
Wed Nov 01, 2023 3:14 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Annular Solar Eclipse over Utah (2023 Nov 01)
Replies: 33
Views: 34909

Re: APOD: Annular Solar Eclipse over Utah (2023 Nov 01)

There is nothing about this image that remotely reflects the actual appearance of the event. It is synthesized from different times and different light levels in order to illustrate some aspects of the event that are not visible to the human eye. Do not attempt to analyze anything other than the ge...
by canopia
Sat Aug 12, 2023 11:33 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Ghirigori - Star Scribbles (2023 Aug 12)
Replies: 12
Views: 4179

Re: APOD: Ghirigori - Star Scribbles (2023 Aug 12)

In the legend, the scribbles labeled V CrB and V Oph look to be the same image.

Meanwhile, the third scribble from left in the top row of the main image does not have a labeled version.

Tunç Tezel
by canopia
Sat Apr 15, 2023 4:08 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: When Z is for Mars (2023 Apr 15)
Replies: 2
Views: 1655

Re: APOD: When Z is for Mars (2023 Apr 15)

Yes, actually quite a few times before, thanks Orin. :)

Tunç Tezel
orin stepanek wrote: Sat Apr 15, 2023 2:59 pm We had this subject Once befor; but today's photo is a lot nicer! :lol2:
by canopia
Sat Sep 10, 2022 1:50 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Galaxy by the Lake (2022 Sep 10)
Replies: 14
Views: 3067

Re: APOD: Galaxy by the Lake (2022 Sep 10)

Nice view. Annotated version has better, richer colours. :wink:

Tunç Tezel
by canopia
Fri Aug 26, 2022 9:32 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Saturn: 1993 - 2022 (2022 Aug 19)
Replies: 15
Views: 4600

Re: APOD: Saturn: 1993 - 2022 (2022 Aug 19)

I started photographing Saturn and Jupiter at least one per year (and generally more) after getting into astrophotography in late 1992. The first images in 1993 were not close to their oppositions, but in the later years I tried to catch them close enough to their oppositions. When you wait long eno...
by canopia
Fri Aug 26, 2022 9:26 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Little Planet South Pole (2022 Aug 26)
Replies: 13
Views: 3578

Re: APOD: Little Planet South Pole (2022 Aug 26)

I’d like to see (and actually prefer) an all-sky version of this. Tunç Tezel https://apod.nasa.gov/apod/calendar/S_220826.jpg Little Planet South Pole Explanation: Lights play around the horizon of this snowy little planet as it drifts through a starry night sky. Of course the little planet is actua...
by canopia
Sun Aug 21, 2022 8:59 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Saturn: 1993 - 2022 (2022 Aug 19)
Replies: 15
Views: 4600

Re: APOD: Saturn: 1993 - 2022 (2022 Aug 19)

Hello, I labeled the Saturn image in the middle of Gemini as 2003-4, as Saturn's opposition was on 1st January 2004, and that Saturn season was split equally between 2003 and 2004. I was able to image the planet in November 2003; I was not able to photograph Saturn around that opposition because I w...
by canopia
Thu Dec 23, 2021 9:05 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Three Planets and a Comet (2021 Dec 23)
Replies: 13
Views: 5566

Re: APOD: Three Planets and a Comet (2021 Dec 23)

Good call Neufer, remembering it is Festivus today. :ssmile: Tunç What's the red spot to the left of the comet? That was a plane, moving a short distance during the 4-second exposure. - Tunç Tezel https://www.youtube.com/watch?v=xteXgurD-DM <<In quantum field theory, the Casimir effect is a physical...
by canopia
Thu Dec 23, 2021 7:14 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Three Planets and a Comet (2021 Dec 23)
Replies: 13
Views: 5566

Re: APOD: Three Planets and a Comet (2021 Dec 23)

beryllium732 wrote: Thu Dec 23, 2021 6:19 pm What's the red spot to the left of the comet?
That was a plane, moving a short distance during the 4-second exposure.

Tunç Tezel
by canopia
Fri May 21, 2021 1:08 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Utopia on Mars (2021 May 21)
Replies: 12
Views: 3330

Re: APOD: Utopia on Mars (2021 May 21)

Pictures from Viking missions looks to have better colour balance. Now, they are set to have excessive brown-yellow.

Tunç
by canopia
Sat Feb 13, 2021 9:28 am
Forum: The Observation Deck: Latest Sky Photography
Topic: Video Submissions
Replies: 705
Views: 2372731

Re: Video Submissions

Mars & Uranus, 2020-'21 2020 was a good year for Mars observing, with the red planet coming to a perihelic opposition on 13-14th October and shining as bright as mag. -2.6. Uranus was also visible in Aries, performing a much slower retrograde motion of its own. Here, motions of Mars and Uranus ...
by canopia
Fri Feb 05, 2021 4:38 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Apollo 14 Heads for Home (2021 Feb 05)
Replies: 23
Views: 9511

Re: APOD: Apollo 14 Heads for Home (2021 Feb 05)

When this picture was taken, the Earth was a narrow crescent, so it was close to a full Moon. I wondered if there was an eclipse around that time, and yes, there was a total Lunar eclipse 3 days after the picture was taken, on 10th Fabruary 1971: http://www.eclipsewise.com/lunar/LEprime/1901-2000/LE...
by canopia
Tue Dec 08, 2020 9:12 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Great Conjunction over Sicilian... (2020 Dec 08)
Replies: 9
Views: 4238

Re: APOD: Great Conjunction over Sicilian... (2020 Dec 08)

Hi everyone, long time, no see. I've heard that the conjunction will be the closest since 1623, and also that it will be the closest in around 800 years. Which one is it? It is the closest since 1623, and it will not be this close again for another 800 years. Actually, the conjunction on 15th March...
by canopia
Tue Dec 08, 2020 10:06 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Great Conjunction over Sicilian... (2020 Dec 08)
Replies: 9
Views: 4238

Re: APOD: Great Conjunction over Sicilian... (2020 Dec 08)

The conjunction in 1623 was very difficult to observe because it happened while the Sun was 12 degrees away. The other conjunction probably mentioned was in 1226, which had the planets rather easily visible in predawn skies.

Tunç Tezel
by canopia
Sat Jul 25, 2020 12:17 pm
Forum: The Observation Deck: Latest Sky Photography
Topic: Video Submissions
Replies: 705
Views: 2372731

Re: Video Submissions

Jupiter & Saturn, 2000-'01
Retrograde motions of Jupiter and Saturn between June 2000 and May 2001, when they were close to each other in Taurus.
Copyright: Tunç Tezel
by canopia
Thu Jun 04, 2020 4:40 pm
Forum: The Observation Deck: Latest Sky Photography
Topic: HiRISE Captioned Images 2020
Replies: 12
Views: 12922

Re: HiRISE Captioned Images 2020

No new HiRISE posts since April, bummer...
by canopia
Fri May 08, 2020 4:07 pm
Forum: The Observation Deck: Latest Sky Photography
Topic: Found Images: 2020 May
Replies: 52
Views: 33794

Re: Found Images: 2020 May

Asteroid 1998 OR ; 52768 Near Earth asteroid's close pass between 20:30 – 20:56 UT on 28th April 2020. By Uğur İKİZLER http://ikizler.org/displayimage.php?album=lastup&cat=0&pid=6460 http://ikizler.org/albums/userpics/10001/1998_OR_28_52768_29_ps_a.png https://www.youtube.com/watch?v=Z2a4SV...
by canopia
Tue Apr 07, 2020 8:59 pm
Forum: The Observation Deck: Latest Sky Photography
Topic: Submissions: 2020 April
Replies: 214
Views: 231930

Re: Submissions: 2020 April

From Earth To Omega Centauri Single-shot photograph of Omega Centauri 2 degrees over the southern horizon; as seen from latitude 40d 7' N, Uludag NP near Bursa, Turkey. Copyright: Tunç Tezel http://www.twanight.org/newTWAN/photos.asp?ID=3005850 http://www.twanight.org/newTWAN/photos/3005850.jpg
by canopia
Sat Mar 07, 2020 6:52 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Pic du Midi Panorama (2020 Mar 07)
Replies: 6
Views: 3800

Re: APOD: Pic du Midi Panorama (2020 Mar 07)

Great panoramic picture. It should be interesting to compare this nightscape with the panorama profile generated by Peakfinder:
https://www.peakfinder.org/?lat=42.9369 ... 835&cfg=sm

Tunç Tezel
by canopia
Fri Feb 14, 2020 10:38 am
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: The Pale Blue Dot (2020 Feb 14)
Replies: 20
Views: 6003

Re: APOD: The Pale Blue Dot (2020 Feb 14)

This newly processed image looks good. Now there are some background stars visible, is it possible to identify which stars these are?

By the way, it is always nice to see a Valentine's Day APOD with something other than Rosette Nebula or Heart Nebula. :wink:

Tunç Tezel
by canopia
Tue Sep 24, 2019 2:26 pm
Forum: The Observation Deck: Latest Sky Photography
Topic: Found Images: 2019 September
Replies: 48
Views: 34124

Re: ESO: Man Meets Milky Way

...And, man looks rather surprised by this scenery. :shock: :lol2: Great view, nice colours. Tunç Tezel Man Meets Milky Way ESO Picture of the Week | 2019 Sep 23 https://cdn.eso.org/images/thumb700x/potw1938a.jpg This week’s Picture of the Week showcases the bulging heart of the Milky Way as it hang...
by canopia
Mon Sep 23, 2019 4:57 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Equinox: The Sun from Solstice to... (2019 Sep 23)
Replies: 20
Views: 7111

Re: APOD: Equinox: The Sun from Solstice to... (2019 Sep 23)

Because there was a layer of high haze, sometimes thin clouds on that day.

Tunç Tezel
http://www.twanight.org
Guest wrote: Mon Sep 23, 2019 4:54 pm Why is the sun whiter in the equinox band than in both solstice bands?
by canopia
Mon Sep 23, 2019 4:28 pm
Forum: The Bridge: Discuss an Astronomy Picture of the Day
Topic: APOD: Equinox: The Sun from Solstice to... (2019 Sep 23)
Replies: 20
Views: 7111

Re: APOD: Equinox: The Sun from Solstice to... (2019 Sep 23)

Thank you Mark. I had photographed this image from the rooftop of our apartment building in Bursa, Turkey; located at 40° 11' N, 29° 4' E. -There are already inevitable messages about the duration between sunrise and sunset being longer than 12 hours on equinox days. This is further complicated by h...