Planets of the Month – June 2023

By Erich Karkoschka

Venus is at its greatest western elongation on the 4th, showing a half phase in a telescope. It is 40 degrees high at sunset and sets after 10 pm.

Mars is close to Venus, only 3 degrees ahead of it by the end of the month.

Saturn rises around midnight. Its rings are tilted by 8 degrees.

Jupiter follows Saturn 3 hours later.

Mercury has a poor visibility around 4:30 am.

The Moon is only 3 degrees from Venus on the evening of the 21st (summer solstice), a spectacular sight. Mars is also nearby. Venus might be seen naked eye long before sunset just to the upper right of the Moon.

Stargazing @ Oracle State Park

Viewing Location: Kannally Ranch House

Information: Great dark skies just north of Tucson at Oracle State Park. Star Party open to the Public. Admission cost for entrance into Oracle State Park may apply. Tucson Amateur Astronomy Association will have several telescopes for astronomical viewing. We will observe Planets, Nebulae, Galaxies, Star Clusters and lots more. Great opportunity to look through a wide variety of telescopes. Weather dependent.

For real-time updates, follow this event on the Tucson Amateur Astronomy Association Facebook Events Page (https://www.facebook.com/TucsonAstronomy/). There is generally a talk and other events also taking place. Check the Oracle State Park website for additional information. Check TAAA Facebook Page or here for any updates as we get closer.

Stargazing @ Saguaro NP – East

Star Party – Saguaro National Park – East
Tucson, AZ

Great dark skies on the East side of Tucson at Saguaro National Park – East.
Star Party is open to the Public. Event is free but NPS admission fees apply.
The Tucson Amateur Astronomy Association will have several telescopes for astronomical viewing. We will observe Planets, Nebulae, Galaxies, Star Clusters and lots more. Great opportunity to look through a variety of telescopes.

Weather dependent. For real-time updates, follow this event on the Tucson Amateur Astronomy Association Facebook Events Page: (https://www.facebook.com/TucsonAstronomy/).

Planets of the Month: May 2023

by Erich Karkoschka

Venus is at its best, 40 degrees high at sunset and not setting until 10:45 pm. The Moon is 4 degrees below Venus on the evening of the 22nd, a great sight. Good eyes can see the pair during the daytime, such as around 3:30 pm when Venus is 84 degrees high. On the 22nd, the Moon is 7 degrees to the west, on the 23rd, 6 degrees to the east.
Mars is in the vicinity of Pollux and Castor all month. On the 15th, they form an 11-degree long line of “stars” of similar brightness.

Saturn rises around 2 am.

Jupiter follow Saturn around 4 am during dawn.

Mercury is barely visible after the 24th when it rises at 4:15 am.

On the morning of the 7th, the Moon occults Jupiter from 4:18 to 5:11 am. It takes a minute each to cover or uncover Jupiter’s large disk. The disappearance is difficult to observe since the pair is only 2 degrees above the horizon, 10 minutes after they rise. The reappearance is difficult to watch naked eye because of bright twilight, just 14 minutes before sunrise. However it should look great in binoculars or a telescope. Interestingly, the shadows of Io and Europa will remain on the disk until well past sunrise but the air may be too turbulent to pick them out.

Grand Canyon Star Party – June 2024

The Grand Canyon Star Party (GCSP) is held on the South Rim in northern Arizona’s Grand Canyon National Park in June every year around the time of the new moon. All amateur astronomers (must register using below information to attend) and the interested public of all ages are invited (no registration required)! Bring your telescope and enjoy the camaraderie. But you don’t have to have a telescope to come and enjoy the beautiful Arizona night skies. You DO need to reserve a room or campsite and make your travel arrangements early. See Accommodation Information for details. A visit to the breathtaking Grand Canyon is an unforgettable and fabulous vacation for families, singles, and seniors. Add a week of dark Arizona skies, lots of friends, fun, and astronomy education, and you have a recipe for perfection!

GCSP 2024

Stay tuned here for updates and information on the 2023 Grand Canyon Star Party, scheduled for June 1 – 8, 2024. PLEASE CHECK HERE as we get closer for any GCSP planning updates. The dates for each phase will be updated as we get closer. Registration will be open 3-4 months prior to the event.

Volunteer Registration form and the Campground Reservation Application links are accessible below under Volunteer Registration Information. Documents required by the National Park Service (NPS)  to be signed and brought to the event are available below and will be emailed to participants approximately 1 month prior.

For any inquires about the status or general information not listed here, please email the team at: gcsp[at]tucsonastronomy.org.  The GCSP Registrar Email address will be added under Registration Information below.

If you are an astronomer volunteering to support this event, please follow the registration instructions below. If you are a visitor to the Grand Canyon National Park at the time of the GCSP just come on out and enjoy the wonderful nights with us under the high desert skies. Again, no registration is necessary for visitors, but astronomer participants will need to register in order to receive further instructions and entry information.

Visit our Frequently Asked Questions for more information. Also visit the excellent National Park Services star party site. And here is a time lapse video taken by TAAA member Dean Ketelsen at the 2011 event and a GCSP 2022 Timelapse from Bob Rose.

FOR MORE VOLUNTEER INFORMATION – CLICK HERE

Tucson Astronomy Festival – March 22, 2025

Hands-on Astronomy Activities

TUCSON ASTRONOMY FESTIVAL

Each year on a Saturday in March or April, the Tucson Amateur Astronomy Association hosts a family fun event during national Astronomy Day. It is held at Brandi Fenton Memorial Park (3482 E River Rd @ Ramada 1)

3 – 9 pm

Interactive Astronomy Activities include:

Solar and Nighttime Observing

Door prizes to include a Grand Youth Prize of a Small Telescope

Bring your own telescope for help using (recommend arriving late afternoon during daylight)

FREE FAMILY FUN EVENT

The 2025 event. Saturday March 22, 2024.

2024 Tucson Astronomy Festival Flyer

To get any updates as we get closer, follow our Facebook Page event at: TAAA Facebook Tucson Astronomy Festival Event

Stargazing @ Saguaro NP – West

TAAA invites you to an evening of star gazing at Saguaro National Park – West
Located on the far West side of town on the other side of the Tucson mountains, this location has very dark skies from horizon to horizon.
Event is put on by Saguaro NP and the IDA (International Dark-Sky Association) to promote International Dark Sky Week.

An introductory talk will be given at 7pm.
The TAAA will have several Telescopes set up to view Stars, Nebula’s, Galaxies, Planets and more starting at 7:30pm!

The event is free and open to the public, but NPS admission fees may apply.
WEATHER DEPENDENT.  Follow the event here for any weather updates or changes.

Planets of the Month: April 2023

by Erich Karkoschka

Mercury is visible well at dusk until the 19th. It even sets past the end of astronomical twilight around the 11th, when it is at greatest elongation from the sun. Afterwards, it shows a small crescent in a telescope.

Venus is high up at sunset and sets more than three hours later. On the 10th, it is only 2 degrees from Pleiades, a nice sight in binoculars.

Mars is very hight at sunset. On the 14th it passes only 9 arc-minutes from third-magnitude star Mebsuta in Gemini. Then it aims for Pollux, the brightest star in Gemini.

Saturn is visible just before dawn in the southeast.

The first minor planet (1) Ceres is an easy binocular object near the tail of Leo.

The moon is close to bright Venus on the 22nd and 23rd and then even closer to Mars on the 25th. It causes a hybrid (total/annular) solar eclipse on the 20th, visible in and near Australia. The same evening it can be spotted with binoculars in Tucson in bright twilight, with Mercury nearby. The moon follows with an almost partial lunar eclipse at noon on May 5th. We are only one year away from the total solar eclipse of April 8, 2024 with more than 4 minutes of totality going from Mazatlan in Mexico through Texas to the Great Lakes.

Evening Under the Stars

Evening Under the Stars Observing at the Tucson Amateur Astronomy Association (TAAA) Chiricahua Astronomy Complex. Want to stargaze from a dark site where the band of the Milky Way is clearly visible across the sky? You see so many stars it is hard to pick out the constellations. Twice per year, we open our TAAA Chiricahua Astronomy Complex (Turkey Creek area near Chiricahua National Monument) to the public for an observing session. You can observe through a telescope with a 40″ mirror and see galaxies over 100 million light years away. We will have several large telescopes to observe with.

Our Fall “Evening Under the Stars” will be Saturday October 7th 2023. The gate will be open at 6:00 pm with activities starting 7:00 pm. Observing will be from 7:00-9:00 pm. Come join us for an exciting evening of astronomical observing. The site is about 90 minutes SE of Tucson near the Chiricahua National Monument. If you have friends/family that live in that area, let them know. The event is weather dependent. Reservations are required. Please email euts[at]tucsonastronomy.org for reservations and directions. Please include number of people & vehicles in your group, and email address.

Evening Under the Stars

Evening Under the Stars Observing at the Tucson Amateur Astronomy Association (TAAA) Chiricahua Astronomy Complex. Want to stargaze from a dark site where the band of the Milky Way is clearly visible across the sky? You see so many stars it is hard to pick out the constellations. Twice per year, we open our TAAA Chiricahua Astronomy Complex (Turkey Creek area near Chiricahua National Monument) to the public for an observing session. You can observe through a telescope with a 40″ mirror and see galaxies over 100 million light years away. We will have several large telescopes to observe with.

Our Spring “Evening Under the Stars” will be Saturday April 8th 2023. The gate will be open at 7:00 pm with activities starting 7:30 pm. Observing will be from 7:30-9:30 pm. Come join us for an exciting evening of astronomical observing. The site is about 90 minutes SE of Tucson near the Chiricahua National Monument. If you have friends/family that live in that area, let them know. The event is weather dependent. Reservations are required. Please email John Kalas at jckalas[at]cox.net for reservations and directions. Please include number of people & vehicles in your group.

The 40 inch StarStructures Dobsonian telescope on the deck of the Reynold-Mitchell Observatory.