Search found 5345 matches

by David Frydman
Sun Aug 09, 2020 2:18 pm
Forum: Gallery
Topic: Mars
Replies: 6
Views: 30

Re: Mars

Very nice image, Brian.

Regards,
David
by David Frydman
Wed Aug 05, 2020 2:46 pm
Forum: General chat
Topic: What to do with unwanted gear
Replies: 5
Views: 857

Re: What to do with unwanted gear

The wife and children?

Regards,
David
by David Frydman
Thu Jul 23, 2020 4:30 pm
Forum: Gallery
Topic: Comet Neowise
Replies: 11
Views: 179

Re: Comet Neowise

The comet is moving rapidly south now at almost 2 degrees a day. But at about 3 p.m. it is near the zenith if anyone wants to try with a big scope. I got some photos a couple of days ago with Canon G15. 1 second f/1.8 1600 ISO. but the comet is rather faint. Shows movement due to Earth rotation in a...
by David Frydman
Thu Jul 23, 2020 4:23 pm
Forum: Gallery
Topic: Comet Neowise
Replies: 11
Views: 179

Re: Comet Neowise

I saw the comet 2020 July 23 02.02 UT to 02.04 UT with 10x25 binocular.

It was 1.5 degrees from a lit white LED street light and about 15 arc minutes from a chimney pot.

I estimated it to be v. mag 3.7.
But at 9 degree elevation not very reliable.

Regards,
David
by David Frydman
Mon Jul 20, 2020 3:08 pm
Forum: Observing
Topic: C/2020 F3 (NEOWISE) 10/11 July 2020
Replies: 22
Views: 556

Re: C/2020 F3 (NEOWISE) 10/11 July 2020

NEOWISE 2020 July 20 00.50 UT to 01.07 UT Just seen with unaided eyes and probably saw tail unaided eyes. Estimated coma at visual magnitude 2.9 with unaided eyes in severe light pollution and 5 degrees from the street light. Easy in 10x25 binocular and best in 8x32 binocular. Tail length 1.5 degree...
by David Frydman
Sat Jul 11, 2020 7:53 pm
Forum: Gallery
Topic: Comet 2020 F3 NEOWISE and NCL
Replies: 5
Views: 121

Re: Comet 2020 F3 NEOWISE and NCL

Lovely photo Jan and welcome. I saw the NLC but not the comet due to buildings. I consider high ISO to be 102,000 with the Sony A7S. 12,800 ISO is normal for all photos. 51,000 ISO is what I use for constellations. The Canon G15 is o.k. at its auto 1600 ISO. I had to hand hold the G15 this morning f...
by David Frydman
Sat Jul 11, 2020 7:39 pm
Forum: Observing
Topic: C/2020 F3 (NEOWISE) 10/11 July 2020
Replies: 22
Views: 556

Re: C/2020 F3 (NEOWISE) 10/11 July 2020

Central condensation probably rather than nucleus.

I cannot see below 8 degrees because of buildings.
But maybe I could see the tail.

No luck this morning.

Regards,
David
by David Frydman
Sat Jul 11, 2020 4:13 pm
Forum: Observing
Topic: NLC 11th July 2020
Replies: 1
Views: 86

Re: NLC 11th July 2020

NLC Very bright. 2020 July 11 02.01 UT to 02.26 UT continuing very bright. Bands, waves and patches. Maximum elevation 14 degrees. Azimuth 345 to 020 both ends limited by trees. Very bright angled patch just west of north but partly hidden by roof. Very nice. Also 01.48 UT Mars and the Moon seen 9 d...
by David Frydman
Tue Jul 07, 2020 3:00 pm
Forum: Observing
Topic: ISS
Replies: 0
Views: 85

ISS

ISS, I think. Unaided eyes and 7x35 binocular. First seen azimuth 260 degrees elevation about 20 degrees rising 2020 July 7 02.11 UT. Maximum elevation about 60 degrees magnitude minus 3.5 approx. White. Last seen fading about mag 2.5 at 20 degree elevation (roof top) azimuth 80 degrees, 2020 July 7...
by David Frydman
Wed Jun 24, 2020 1:17 pm
Forum: Observing
Topic: Major NLC display June 22
Replies: 2
Views: 238

Re: Major NLC display June 22

Hi Nigel, One does not expect a room to explode with a loud bang and vivid white flash of light. There was a smell of burning for half an hour beforehand, so I turned the gas rings main tap off, thinking it might be that. What worried me was fire. I have several powder extinguishers but don't know i...
by David Frydman
Mon Jun 22, 2020 9:28 am
Forum: Observing
Topic: Major NLC display June 22
Replies: 2
Views: 238

Major NLC display June 22

This morning 2020 June 22 between 01.55 UT and 02.38 UT I witnessed one of the best U.K. NLC displays in 50 years. All 5 forms. Very bright. 5 degrees to 50 degrees elevation. Azimuth 320 degrees (Trees/buildings limit) to 125 degrees. At 120 degrees azimuth display was 45 degree elevation. Clear tr...
by David Frydman
Wed Jun 17, 2020 2:53 pm
Forum: Observing
Topic: Noctilucent Cloud - Morning of 17th June 2020
Replies: 2
Views: 298

Re: Noctilucent Cloud - Morning of 17th June 2020

John, I saw this 2020 June 17 from 01.45 UT to 02.22 UT when it was fading. I lost it at 02.32 UT due to brightening sky. New white LED streetlight a nuisance. It was bright and maximum elevation was 11 degrees here. I have a very restricted view due to trees, buildings etc. so I only saw it from az...
by David Frydman
Sat Jun 06, 2020 10:34 am
Forum: General chat
Topic: DSLR won't focus
Replies: 2
Views: 270

Re: DSLR won't focus

Welcome. Back focus of Nikons is usually longer. It might work with a Barlow lens or moving secondary or main mirror along axis. But this may not be easy. Adapters containing a 1.2x lens may also work, such as Minolta MD to Minolta AF. SRB Griturn have such adapters. There may be some Nikon adapters...
by David Frydman
Sat Jun 06, 2020 10:24 am
Forum: Observing
Topic: NLC
Replies: 0
Views: 429

NLC

2020 June 6 0205 UT to 02.32 UT. Continuing. Bright display. Elevation 6 degrees to 40 degrees maximum. Azimuth 335 degrees to 035 degrees limited by large tree on left and building on right. Bands 2 Whirls 4 Amorphous 5. Transparency good. Remarkably fast speed noted in 10x42 binocular east to west...
by David Frydman
Sun May 31, 2020 2:36 pm
Forum: Observing
Topic: May 2020
Replies: 4
Views: 672

May 2020

The sky has been unusually transparent, especially at low elevation, say 10 degrees. This is almost daily at about 0200 UT. I think the lack of aircraft contrails is part of the reason. Every morning I look for noctilucent cloud, but no success yet. There is a large tree in the way, which lessons my...