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Owner: Mark Lonsdale

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Mark Lonsdale's collections

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Mark Lonsdale

Mark Lonsdale

A retired scientist based in Canberra, I am now a keen planetary imager, especially of Mars

Local societies
Canberra Astronomical Society, Australia; Nemesis Saverne, France

Showing all 35 of this user's images.


8 
0 
Images from the Mars o...
Mark Lonsdale
Obs 2024 Apr 17 – 01:41 UTC
Upload 2025 May 13 – 01:46 UTC

4 
2 
Venus in UV 2024
Mark Lonsdale
Obs 2024 Sep 30 – 01:35 UTC
Upload 2025 May 13 – 01:41 UTC

6 
0 
Saturn 11 September 20...
Mark Lonsdale
Obs 2023 Sep 11 – 12:36 UTC
Upload 2023 Sep 20 – 08:00 UTC

10 
0 
Tethys transit
Mark Lonsdale
Obs 2023 Sep 06 – 14:23 UTC
Upload 2023 Sep 20 – 07:57 UTC

2 
0 
Sol 10 Mar 2023
Mark Lonsdale
Obs 2023 Mar 10 – 04:46 UTC
Upload 2023 Mar 21 – 03:55 UTC

6 
2 
Mars opposition 2022-2...
Mark Lonsdale
Obs 2023 Mar 06 – 23:03 UTC
Upload 2023 Mar 06 – 23:09 UTC

8 
2 
The approach of Mars 2...
Mark Lonsdale
Obs 2022 Jun 10 – 07:15 UTC
Upload 2022 Jun 10 – 07:29 UTC

12 
0 
Mars 14 April 2022
Mark Lonsdale
Obs 2022 Apr 14 – 19:17 UTC
Upload 2022 Apr 17 – 08:41 UTC

9 
0 
Clouds on Venus visibl...
Mark Lonsdale
Obs 2022 Apr 04 – 19:53 UTC
Upload 2022 Apr 05 – 05:56 UTC

13 
0 
Mars 4 April 2022
Mark Lonsdale
Obs 2022 Apr 04 – 19:19 UTC
Upload 2022 Apr 05 – 05:54 UTC

7 
2 
Mars 21 March 2022 19:...
Mark Lonsdale
Obs 2022 Mar 21 – 19:02 UTC
Upload 2022 Mar 22 – 05:43 UTC

7 
0 
Venus in UV
Mark Lonsdale
Obs 2021 Sep 26 – 08:26 UTC
Upload 2021 Sep 27 – 01:14 UTC

4 
0 
Mercury 14 Sept 2021
Mark Lonsdale
Obs 2021 Sep 14 – 08:06 UTC
Upload 2021 Sep 18 – 00:56 UTC

13 
0 
Saturn 5 July 2021
Mark Lonsdale
Obs 2021 Jul 08 – 05:21 UTC
Upload 2021 Jul 08 – 05:23 UTC

6 
0 
Measuring the brightne...
Mark Lonsdale
Obs 2020 Apr 27 – 10:53 UTC
Upload 2021 Jun 13 – 10:55 UTC

4 
0 
Jupiter and the GRS 31...
Mark Lonsdale
Obs 2021 May 31 – 18:49 UTC
Upload 2021 Jun 01 – 09:34 UTC

18 
0 
Jupiter 15 May 2021
Mark Lonsdale
Obs 2021 May 15 – 20:09 UTC
Upload 2021 May 16 – 10:45 UTC

17 
0 
Jupiter 1 May 2021
Mark Lonsdale
Obs 2021 May 01 – 19:45 UTC
Upload 2021 May 03 – 01:55 UTC

14 
0 
Jupiter 18 April 2021
Mark Lonsdale
Obs 2021 Apr 18 – 19:34 UTC
Upload 2021 Apr 20 – 07:14 UTC

9 
2 
Approach of Mars to Op...
Mark Lonsdale
Obs 2021 Apr 10 – 07:23 UTC
Upload 2021 Apr 10 – 07:23 UTC

2 
0 
Mars 10 Jan 2021
Mark Lonsdale
Obs 2021 Jan 11 – 00:48 UTC
Upload 2021 Jan 11 – 00:49 UTC

4 
0 
Close to the Grand Con...
Mark Lonsdale
Obs 2020 Dec 20 – 09:57 UTC
Upload 2020 Dec 21 – 05:49 UTC

17 
0 
Mars 3 Oct - Olympus ...
Mark Lonsdale
Obs 2020 Oct 03 – 05:37 UTC
Upload 2020 Oct 05 – 04:22 UTC

15 
0 
Clouds over the Tharsi...
Mark Lonsdale
Obs 2020 Sep 27 – 05:00 UTC
Upload 2020 Sep 28 – 05:02 UTC

14 
2 
Seeliger effect -trend...
Mark Lonsdale
Obs 2020 Aug 14 – 05:36 UTC
Upload 2020 Aug 14 – 05:40 UTC

12 
0 
The Seeliger Effect on...
Mark Lonsdale
Obs 2020 Aug 14 – 05:30 UTC
Upload 2020 Aug 14 – 05:36 UTC

13 
0 
Mars 22nd July - polar...
Mark Lonsdale
Obs 2020 Jul 22 – 08:38 UTC
Upload 2020 Jul 23 – 09:02 UTC

6 
0 
Progress of the region...
Mark Lonsdale
Obs 2020 Jul 02 – 06:52 UTC
Upload 2020 Jul 05 – 06:53 UTC

19 
1 
Jupiter 18 June 2020
Mark Lonsdale
Obs 2020 Jun 18 – 06:44 UTC
Upload 2020 Jun 24 – 06:47 UTC

14 
0 
Mars 18 June 2020
Mark Lonsdale
Obs 2020 Jun 18 – 06:17 UTC
Upload 2020 Jun 24 – 06:22 UTC

15 
0 
Albedo on Ganymede
Mark Lonsdale
Obs 2020 Jun 04 – 04:10 UTC
Upload 2020 Jun 14 – 07:04 UTC

16 
0 
Mars 4 June 2020 - SPC...
Mark Lonsdale
Obs 2020 Jun 04 – 06:46 UTC
Upload 2020 Jun 14 – 06:58 UTC

10 
0 
Saturn April 2019
Mark Lonsdale
Obs 2019 Apr 10 – 11:15 UTC
Upload 2020 May 24 – 11:17 UTC

7 
0 
Approach of Mars to Op...
Mark Lonsdale
Obs 2020 May 22 – 11:11 UTC
Upload 2020 May 24 – 11:15 UTC

7 
0 
Jupiter 18 April 2020
Mark Lonsdale
Obs 2020 Apr 18 – 11:08 UTC
Upload 2020 May 24 – 11:11 UTC
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