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February 13, 2026
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  • Profile picture of Macastronomer

    Macastronomer replied to the topic RAC Logo Redesign in the forum General Discussion 1 year, 6 months ago

    Of course this still requires two logos, one for dark on light and one for light on dark.

    RAC Logo Inverse

  • Profile picture of Macastronomer

    Macastronomer started the topic RAC Logo Redesign in the forum General Discussion 1 year, 6 months ago

    Many years ago I created the RAC logo, and it although it has changed a bit since then I have always been troubled with the whole thing because it isn’t a two-tone logo, meaning it can’t be made with a single color. A single color logo makes it much easier to put on hats, shirts, or a vinyl cutout which is what I’m trying to do right now.

    The…[Read more]

  • Profile picture of Macastronomer

    Macastronomer replied to the topic Observing tonight? in the forum General Discussion 1 year, 6 months ago

    Great info. I always thought it was an 11 year cycle but that must be short of what’s happening now.

    Josef, thanks for the spell check. I’ve been saying it wrong for years. 😮

    And thanks for turning out the light.

    Check this out. I got a Cricut for my daughter and I decided to print out a tribute to Dean for my scope. Just added this…[Read more]

  • Profile picture of Josef Chlachula

    Josef Chlachula replied to the topic Observing tonight? in the forum General Discussion 1 year, 6 months ago

    Beautiful images of the northwest horizon with crepuscular rays! I added one of them with the crescent Moon to the article about Root River Park.

  • Profile picture of fealeybob14

    fealeybob14 replied to the topic Observing tonight? in the forum General Discussion 1 year, 6 months ago

    Terrific Milky Way shot Duane! Nice corpuscular rays. Glad you two had fun at Root River.
    I’ve been following solar cycle 25 closely on unmanned spaceflight. I don’t think the cycle has peaked as yet, at least based on sunspot numbers. Check out this link: https://spaceweather.com/images2024/02aug24/sunspotnumber2.jpg

  • Profile picture of Macastronomer

    Macastronomer replied to the topic Observing tonight? in the forum General Discussion 1 year, 6 months ago

    Also, Joseph spotted this… Corpuscular rays shooting upward!

  • Profile picture of Macastronomer

    Macastronomer replied to the topic Observing tonight? in the forum General Discussion 1 year, 6 months ago

    Ooooo….   What scope and mount did you get? Do tell!

    I’m thinking the same thing… I want the rig I want and it’s taking forever to get it; but eventually I’ll get there. I keep seeing cheaper compromising equipment for less and I keep ignoring it, but it’s so tempting.

    Equipment I need to get to finish my setup: Astro-Camera (preferably the…[Read more]

  • Profile picture of Macastronomer

    Macastronomer replied to the topic Observing tonight? in the forum General Discussion 1 year, 6 months ago

    Here’s the Milky Way shot I took last night:

    Milky Way from Root River

  • Profile picture of fealeybob14

    fealeybob14 replied to the topic Observing tonight? in the forum General Discussion 1 year, 6 months ago

    I was lazy and stayed at my home observatory last nite.  Good skies for sure, so I hope Josef and Duane enjoyed observing at Root River.  I have a new mount and scope and was educating myself on how to operate them.  The mount is the HEQ5 Pro and the scope is the Quattro 150P, all Sky Watcher hardware.  Spent $2000+ of my savings, but hey I’m not…[Read more]

  • Profile picture of Macastronomer

    Macastronomer replied to the topic Observing tonight? in the forum General Discussion 1 year, 6 months ago

    That is one big sun spot! I think we’re now past the active part of the sun’s cycle and it’s supposed to be gradually calming down. That seems to be taking a while.

     

  • Profile picture of Josef Chlachula

    Josef Chlachula replied to the topic Observing tonight? in the forum General Discussion 1 year, 6 months ago

    I just went outside, put on my eclipse sunglasses and looked with the naked eye at the big sunspot. Here is SDO image https://sdo.gsfc.nasa.gov/assets/img/browse/2024/08/07/20240807_170000_512_HMIIC.jpg:

  • Profile picture of Josef Chlachula

    Josef Chlachula replied to the topic Observing tonight? in the forum General Discussion 1 year, 6 months ago

    Weather forecast for tonight Tue 8/6 looks promising. I plan to go to the Root River park to make sure the light is switched off.

  • Profile picture of Macastronomer

    Macastronomer replied to the topic Observing tonight? in the forum General Discussion 1 year, 6 months ago

    Thanks for posting. Looking up it was pretty good. I could see all the stars in the Little Dipper and a lot more within that I normally can’t see. But that was looking most upward. Looking at the northern horizon was hazy (see pic).

    Looking east and west, all but the brightest stars disappeared.

    Great sky while looking upward, but the lower you…[Read more]

  • Profile picture of fealeybob14

    fealeybob14 replied to the topic Observing tonight? in the forum General Discussion 1 year, 6 months ago

    Excellent members event at Eagle Bluff last night and early this am.
    A zenith dark sky recording is shown below

  • Profile picture of fealeybob14

    fealeybob14 replied to the topic Blaze Star in the forum General Discussion 1 year, 6 months ago

    Looks like you are prepared for the spectacle Duane!  Looking at magnitude data of T CrB from AAVSO today, shows an unusual fluctuation in brightness https://apps.aavso.org/webobs/results/?star=000-BBW-825&num_results=200

    Not sure of the meaning of this, but wouldn’t it be great if tonight was the night and we were observing at Eagle Bluff!

  • Profile picture of Macastronomer

    Macastronomer started the topic Who all is Planning on Eagle Bluff? August ‘24 in the forum Star Parties 1 year, 6 months ago

    Just wondering, who all is planning on being at Eagle Bluff on Friday?

  • Profile picture of Macastronomer

    Macastronomer replied to the topic Blaze Star in the forum General Discussion 1 year, 6 months ago

    The Blaze Star is probably going to saturate on my camera… I’m going to keep working it out and see if I can figure out how to get the whole light curve. I don’t think my camera can get the whole 8 magnitudes in the same exposure setting. It will be interesting. I’m glad it hasn’t blown yet.

  • Profile picture of Macastronomer

    Macastronomer started the topic Blaze Star in the forum General Discussion 1 year, 6 months ago

    After a few nights of observation and imaging, I think I’ve settled on a camera setting to image the Blaze Star, T Cor Bor. The issue isn’t getting a good image of the star as it is, the issue is getting a good image of the star that isn’t saturated or adulterated after it blows. For that reason I need to save room in the exposure gamut of the…[Read more]

  • Profile picture of Macastronomer

    Macastronomer started the topic 55 Years Ago Today! in the forum General Discussion 1 year, 6 months ago

    Apollo 11 Moon Landing…

  • Profile picture of Macastronomer

    Macastronomer replied to the topic T Cor Bor in the forum Meetings 1 year, 7 months ago

    Answer to Question.

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Upcoming Events

Feb
27
Fri
6:30 pm Public Sky Observing 2026-02/27 @ Oxbow Park
Public Sky Observing 2026-02/27 @ Oxbow Park
Feb 27 @ 6:30 pm – 8:00 pm
Public Sky Observing 2026-02/27 @ Oxbow Park | Byron | Minnesota | United States
Presentation by Randy Hemann When the Sky Glows: How the Northern Lights Work Auroras have inspired myths and scientific inquiry across various cultures and throughout history. In this talk, we will explore the interactions between solar activity, Earth’s magnetic field, atmospheric chemistry, and human perception that create these stunning light displays. The colors and visibility of auroras depend on altitude, [...]
Mar
10
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7:00 pm RAC Monthly Meeting March 2026 @ TBD
RAC Monthly Meeting March 2026 @ TBD
Mar 10 @ 7:00 pm – 9:00 pm
Please come to the Rochester Astronomy Club monthly meetings! These meetings are free and open to the public. Each month we will try to bring you a different presentation and share observing notes and tips. Agenda will be published on the Sunday before the meeting. We are offering these meetings in a hybrid fashion, you can attend either in person [...]
Mar
27
Fri
8:00 pm Public Sky Observing 2026-03/27 @ Oxbow Park
Public Sky Observing 2026-03/27 @ Oxbow Park
Mar 27 @ 8:00 pm – 9:30 pm
Public Sky Observing 2026-03/27 @ Oxbow Park | Byron | Minnesota | United States
Beginners guide to the Astrophotography Presentation by Michael Benson Astrophotography captures the breathtaking beauty and secrets of the cosmos. It requires specialized equipment to collect faint light over long exposures, revealing details invisible to the naked eye. From capturing the vibrant colors of nebulae to the majestic dance of galaxies, astrophotography allows us to witness astronomical phenomena in stunning detail, pushing [...]
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