I use Baader Astro film. I've purchased it from Agena Astro before for very reasonable prices (e.g., $14 for a 4" square): ...
32984
Geoff Gaherty
gahertyg
Jun 8, 2012 4:35 am
... Regarding the new polycarbonate (plastic) welding filters, I learned from Ralph Chou just before the event that they do NOT provide the same degree of...
32985
Geoff Gaherty
gahertyg
Jun 8, 2012 7:44 am
... I think we need to be very careful about terminology. For most astronomers, "Mylar" refers specifically to the filters made for many years by Roger...
32986
Chuck
boatleaks
Jun 9, 2012 12:00 am
I consider myself educated on this issue. Thanks for the info. I assumed my welder buddies were correct when they told me the UV radiation on the job was more...
32987
white837@...
mr_mpwhite
Jun 9, 2012 2:43 am
Greetings Everyone, Notwithstanding the color of the image, what do you think of Seymour Solar Film? This is a link to a review on Cloudy Nights that was...
32988
davejm28
Jun 13, 2012 1:57 am
I spent a few hours at the Astronomical Society of Harrisburg's Naylor Observatory on Friday night with the goal of positively observing the recent supernova...
32989
watchingthesky2003
watchingthes...
Jun 15, 2012 11:38 pm
I've been having no problem seeing NGC 4424 on what few clear nights there have been here in southern Kansas. I live in a small town where I can typically see...
32990
Rex I.
xatnep5784
Jun 16, 2012 3:28 am
Hi Folks, If you are interested in the astronomical adventures of an astronomer in a third-world country you may wish to read my narrative on observing comets...
32991
dennis_persyk
Jun 21, 2012 11:42 pm
In the past I've tried to observe and photograph satellite passes with little success. The other night I observed and photographed the ISS on a particularly...
32992
Dave
dave_hat2002
Jun 25, 2012 8:25 pm
Hi All, I found a nice star grouping, very bright and pretty. But it does not appear to be listed in any of the usual catalogs as an open cluster or...
32993
dennis_persyk
Jun 26, 2012 7:45 pm
The California Nebula, NCG7000, is a photographically bright emission nebula located just below Deneb in Cygnus. My trusty Kepple and Sanner Obsever's Guide...
32994
judson Mitchell
mitchell_judson
Jun 26, 2012 11:50 pm
Misstated NGC7000 (North American Nebula). ... -- Jud Mitchell Ret. [Non-text portions of this message have been removed]...
32995
Paul Alsing
pnalsing@...
Jun 27, 2012 12:40 am
Hi Dennis, Well... actually, NGC 7000 is the North America Nebula, and that is what you have photographed. The actual California Nebula is NGC 1499, in...
32996
Eric Jamison
ej1847
Jun 27, 2012 11:31 am
Hi, Here are links to sketches I made of both deep sky objects using a 90mm f/5 refractor on alt-az mount. The North America and Pelican Nebula, where a OIII...
32997
davejm28
Jun 28, 2012 12:50 am
I returned on Sunday evening from a very productive ten-night stay at Cherry Springs State Park. My friend Tony Donnangelo and I observed many celestial...
32998
davejm28
Jul 1, 2012 1:05 am
July Celestial Calendar by Dave Mitsky All times, unless otherwise noted, are UT (subtract four hours and, when appropriate, one calendar day for EDT) 7/1...
32999
starrynights@yahoogro...
Jul 1, 2012 10:34 am
Starrynights Policy Statement As a reminder of this group's desire to encourage all of its members to participate in a friendly and informed manner, please...
33000
starrynights@yahoogro...
Jul 1, 2012 10:34 am
Welcome to Starrynights! Jump right in and post any observing related topics, questions, observations any time! We have lots of resources available on the...
33001
Eric Jamison
ej1847
Jul 8, 2012 12:43 am
Hi, I woke up before sunrise recently and looking out of the back window noted that Jupiter and Venus were visible in the eastern sky above the trees. So I...
33002
Eric Jamison
ej1847
Jul 10, 2012 4:10 pm
Hi, Sorry for the broken link to the British Astronomical Association in my email. Here is the correct one: ...
33003
dennis_persyk
Jul 11, 2012 9:34 pm
IC 1396 is in the Milky Way. It is surrounded by several Barnard dark nebulae and a dense star field from which the Milky Way gets its name. My web page...
33004
Chuck
boatleaks
Jul 16, 2012 1:32 am
In all my life residing between 42°N and 44°N I have never before seen an aurora borealis. I have heard that they can often be seen at that latitude. Thanks...
33005
Eric Jamison
ej1847
Jul 16, 2012 12:56 pm
Hi, I got up early recently to observe the Moon, Venus and Jupiter in the early morning sky with the TMB 105mm (4.1") f/6.2 on its alt-az mount. I used the...
33006
Eric Jamison
ej1847
Jul 16, 2012 1:22 pm
Hi Chuck, I was not able to observe the recent aurora display but have seen them in the past. I have noted that depending upon weather conditions, light ...
33007
zumbinis
Jul 16, 2012 9:30 pm
ChuCk, Thank you for your very interesting report about a possible aurora sighting. In more then 50 years in the Chicago suburbs, and 6 years in central...
33008
Geoff Gaherty
gahertyg
Jul 16, 2012 9:56 pm
... After a couple of _weeks_ of mostly clear nights, it of course clouded over here in southern Ontario as soon as aurora was predicted. Otherwise I've been...
33009
Chuck
boatleaks
Jul 17, 2012 1:56 am
I do believe there is an Aurora easily visible a few miles west of Chicago but it's nothing like I've seen in pictures either LOL! I grew up and did my...
33010
Chuck
boatleaks
Jul 17, 2012 2:11 am
Thanks for the cool pics Eric- what I saw resembled the second photo in your link except it lacked color. I wish I had some imaging capability more than a...
33011
Eric Jamison
ej1847
Jul 18, 2012 12:40 pm
Hi Chuck, Thanks, and glad to hear that they helped to confirm that you saw the aurora. I came across the aurora photo's I took in 1989 that was the strongest ...
33012
Hugh Bartlett
hughbartlett2
Jul 19, 2012 6:25 pm
Hi Chuck, That would be the one where Wayne's World was filmed! That's where I grew up, 40 miles west of the Loop, at a time when skies were much darker. I...
