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T
he
A
stronomy
C
onnection
Greater San Francisco bay area
Google Group Forum
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TAC annual star parties:
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Observing reports:
TAC
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PSC
Establised 1996
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Joshua Hutchins
,
Alex
2
6:58 PM
Observing at LSA North Campground?
That shore was closed for many years. I've been camping and observing with my 12" there
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Observing at LSA North Campground?
That shore was closed for many years. I've been camping and observing with my 12" there
6:58 PM
Mark Wagner
, …
Drew Pletcher
4
5:22 PM
The coming storm
True, Drew. It's a probability. This is just asserting the idea of greatly increased Maybe we
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The coming storm
True, Drew. It's a probability. This is just asserting the idea of greatly increased Maybe we
5:22 PM
Rich Gregor
2:53 PM
fwd: 2026 SJAA Fall Swap Meet date: Sunday, Sept 27, 2026
(fwd'ing this as I hadn't seen it posted here) SJAA's Swap Meet is scheduled for Sunday,
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fwd: 2026 SJAA Fall Swap Meet date: Sunday, Sept 27, 2026
(fwd'ing this as I hadn't seen it posted here) SJAA's Swap Meet is scheduled for Sunday,
2:53 PM
Randy John
,
Alex
3
1:08 PM
JUICE flyby
Thank you for heads up Randy, fascinating target to try. -Alex On Sun, Sep 20, 2026 at 4:08 PM Randy
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JUICE flyby
Thank you for heads up Randy, fascinating target to try. -Alex On Sun, Sep 20, 2026 at 4:08 PM Randy
1:08 PM
Drew Pletcher
2:43 AM
NGC 6888
Need to get more time on the Crescent, but here is 4 hours of HOO from Coe on 9/12 Crescent Nebula,
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NGC 6888
Need to get more time on the Crescent, but here is 4 hours of HOO from Coe on 9/12 Crescent Nebula,
2:43 AM
Jerry Gerber
Sep 20
Infinite Eternity
A new astrophotographic music video by Jerry Gerber https://app.astrobin.com/u/jsg?i=fqirak I hope
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Infinite Eternity
A new astrophotographic music video by Jerry Gerber https://app.astrobin.com/u/jsg?i=fqirak I hope
Sep 20
Randy John
, …
Mark
3
Sep 20
New member Randy John
Welcome aboard! I'm another (long time) 18 Obsession user. On Sunday, September 20, 2026 at 3:10:
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New member Randy John
Welcome aboard! I'm another (long time) 18 Obsession user. On Sunday, September 20, 2026 at 3:10:
Sep 20
Muriel Dulieu Holzer
, …
David Staples
8
Sep 19
OR: Supernova SN 2026aaiv in the fog at Lake Sonoma
The supernova is definitely a lot brighter than when I observed and imaged it on the 6th. I've
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OR: Supernova SN 2026aaiv in the fog at Lake Sonoma
The supernova is definitely a lot brighter than when I observed and imaged it on the 6th. I've
Sep 19
Brad Templeton
Sep 19
OR: EAA at Calstar and Supernova
I had two fine nights at Calstar. I set up my EAA rig, with 2.8K monitor. It is seductive to get the
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OR: EAA at Calstar and Supernova
I had two fine nights at Calstar. I set up my EAA rig, with 2.8K monitor. It is seductive to get the
Sep 19
Jim Best
Sep 19
sn 2026aaiv above Tuolumne Meadows
Hiked up to 10000 with my Seestar s30 (3.4lbs) and overnight camping gear on Tue 9/14. Max
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sn 2026aaiv above Tuolumne Meadows
Hiked up to 10000 with my Seestar s30 (3.4lbs) and overnight camping gear on Tue 9/14. Max
Sep 19
Muriel Dulieu Holzer
4
Sep 19
For Sale: Teleport with 14.5" Zambuto mirror
Hi all, The Teleport is still available. I was hesitant to sell it for a while, but I am decided now.
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For Sale: Teleport with 14.5" Zambuto mirror
Hi all, The Teleport is still available. I was hesitant to sell it for a while, but I am decided now.
Sep 19
Richard Navarrete
, …
Akarsh Simha
17
Sep 19
Most unforgettable observation
On Sat, Sep 19, 2026 at 11:03 Paul Alsing <pnal...@gmail.com> wrote: I forgot to mention that
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Most unforgettable observation
On Sat, Sep 19, 2026 at 11:03 Paul Alsing <pnal...@gmail.com> wrote: I forgot to mention that
Sep 19
Mark Wagner
, …
Alex
23
Sep 17
October's new moon night sky stands still!
Imaging planning has its own quirks I guess. For visual observations planning, all I do in DSO
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October's new moon night sky stands still!
Imaging planning has its own quirks I guess. For visual observations planning, all I do in DSO
Sep 17
Peter Santangeli
, …
John Pierce
25
Sep 16
Mirror coating
my Bob Fies aluminized Coulter 10" mirror is going strong after about 12 or 15 years now. And
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Mirror coating
my Bob Fies aluminized Coulter 10" mirror is going strong after about 12 or 15 years now. And
Sep 16
Jamie Dillon, DDK
, …
Mark
4
Sep 16
OR CalStar XXVII
The pigs broke into a food cooler on a picnic bench in the dark, ate a bunch of ground coffee and the
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OR CalStar XXVII
The pigs broke into a food cooler on a picnic bench in the dark, ate a bunch of ground coffee and the
Sep 16
Akarsh Simha
,
Richard Ozer
2
Sep 16
First Light Telescope Conference
Thanks for the info Akarsh. I've been wanting to meet Dan for a while. Maybe I'll go. On Wed,
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First Light Telescope Conference
Thanks for the info Akarsh. I've been wanting to meet Dan for a while. Maybe I'll go. On Wed,
Sep 16
Dan Smiley
, …
Akarsh Simha
4
Sep 16
OR: September 11-12 part 1
Thanks for the very nice report, Dan! Looking at the DSS2 image, I would believe that IC 5076 is not
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OR: September 11-12 part 1
Thanks for the very nice report, Dan! Looking at the DSS2 image, I would believe that IC 5076 is not
Sep 16
Steve Gottlieb
, …
Mark Johnston
15
Sep 16
Supernova in NGC 7331
Last night, the NGC 7331 supernova (2026aaiv) was slightly brighter than a confirmed mag 12.1 star
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Supernova in NGC 7331
Last night, the NGC 7331 supernova (2026aaiv) was slightly brighter than a confirmed mag 12.1 star
Sep 16
Dan Smiley
, …
Steve Gottlieb
5
Sep 16
OR part 2
The skies were darker at Fremont Peak 45 years ago, but I first logged NGC 7492 there with my C-8 in
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OR part 2
The skies were darker at Fremont Peak 45 years ago, but I first logged NGC 7492 there with my C-8 in
Sep 16
Francesco Meschia
, …
Joel Lee
5
Sep 16
[OR] CalStar 2026
Thank you! And –likewise – it was great to meet and talk to you! Francesco On Sep 15, 2026, at 12:25,
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[OR] CalStar 2026
Thank you! And –likewise – it was great to meet and talk to you! Francesco On Sep 15, 2026, at 12:25,
Sep 16
Steve Gottlieb
, …
Ziad Khouri
5
Sep 15
OI: Lake Sonoma Monday night (Sep. 14)
I would like to join, but can only be there a little later, probably around 8:30. Ziad On Tuesday,
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OI: Lake Sonoma Monday night (Sep. 14)
I would like to join, but can only be there a little later, probably around 8:30. Ziad On Tuesday,
Sep 15
Brad Templeton
, …
John Pierce
8
Sep 15
Using weather.us to look at all the cloudcover models
Hmm. May not be worth it if you have to trust their the security. At the very least you can send them
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Using weather.us to look at all the cloudcover models
Hmm. May not be worth it if you have to trust their the security. At the very least you can send them
Sep 15
Peter Santangeli
,
Richard Navarrete
3
Sep 15
Calstar 2026 OR
Thanks! The whole collection is getting pretty good: https://www.santangeli.net/astrobrowser/ I also
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Calstar 2026 OR
Thanks! The whole collection is getting pretty good: https://www.santangeli.net/astrobrowser/ I also
Sep 15
Mark
, …
Alex
12
Sep 15
Calstar missing person?
Brad, in this digitally connected world, we don't need a dedicated person responsible for such
unread,
Calstar missing person?
Brad, in this digitally connected world, we don't need a dedicated person responsible for such
Sep 15
Brad Templeton
Sep 14
Update on new Coe Park location "Ring Stop" -- rangers say OK and no park fees
I heard back from the rangers and they say Astronomy is fine at the location I've given the code
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Update on new Coe Park location "Ring Stop" -- rangers say OK and no park fees
I heard back from the rangers and they say Astronomy is fine at the location I've given the code
Sep 14
Arvind K
,
miloc...@gmail.com
2
Sep 14
OR - CalStar 2026
Thanks Arvind. My experience was similar to yours, with an 8" dob I used for the first time,
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OR - CalStar 2026
Thanks Arvind. My experience was similar to yours, with an 8" dob I used for the first time,
Sep 14
John Pierce
Sep 13
Fwd: Joel
Ok, Joel made it home ---------- Forwarded message --------- From: Jeanine Lee <jeanineyy@gmail.
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Fwd: Joel
Ok, Joel made it home ---------- Forwarded message --------- From: Jeanine Lee <jeanineyy@gmail.
Sep 13
John Pierce
,
Joel Lee
2
Sep 13
URGENT ?
Hi John, Thanks for the concern! Sorry about the message. I didn't have signal since about last
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URGENT ?
Hi John, Thanks for the concern! Sorry about the message. I didn't have signal since about last
Sep 13
Stefano Antonini
, …
Mark
12
Sep 13
Is Lake Sonoma always windy?
Thanks Richard. I checked too. I was unsure because of the remark about headlights from the
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Is Lake Sonoma always windy?
Thanks Richard. I checked too. I was unsure because of the remark about headlights from the
Sep 13
Mark
, …
David Kirjassoff
3
Sep 12
9/11 2001 CalStar
Tonight was crisp and clear. Smoke free and Milky Way quite prominent. Nighttime temps in the low 60s
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9/11 2001 CalStar
Tonight was crisp and clear. Smoke free and Milky Way quite prominent. Nighttime temps in the low 60s
Sep 12