Tag Archives: Observing

Star Party Etiquette

A public star party is one of the most enjoyable and inspiring ways to experience astronomy. There is nothing quite like seeing Saturn’s rings with your own eyes, watching the craters of the Moon snap into sharp focus, or spotting a distant star cluster or galaxy for the very first time. Unlike looking at images online, you are seeing actual photons that have traveled across space, sometimes for millions of years, before reaching your eye. That simple fact alone makes the experience feel personal and meaningful.

Keep Looking UpStar parties are also incredibly informative. Most observers are more than happy to explain what you are looking at, how their telescope works, and how you can get started yourself. Whether you are completely new to astronomy or have been observing for years, these gatherings offer an opportunity to learn something new, ask questions, and share in the excitement of discovery. The atmosphere is relaxed, welcoming, and genuinely enjoyable, a wonderful mix of education, fun, and inspiration under the night sky.

A public star party is meant to be relaxed, welcoming, and enjoyable, but it also works best when everyone understands a few simple ground rules. Telescopes are carefully aligned, observers are protecting their night vision, and many people may be waiting patiently for a look through the eyepiece. A little awareness and courtesy go a long way. If you are attending a major star party such as the Texas Star Party, Winter Star Party in the Florida Keys, or the Grand Canyon Star Party, or one of many others across the U.S. then be sure to check that star parties web site for specific rules regarding that event.

If you have a star party in your future and are looking for some general guidelines to assist you then please see my list below. Many of these guidelines below come from years of actively participating in star parties. I have experienced many, if not all, of the situations that have lead to these guidelines. These suggestions are straightforward, easy to follow, and they’ll help ensure that everyone can enjoy a smooth, memorable evening under the stars.

Guideline Why It Matters What To Do
Before You Arrive
Arrive Before Dark (If Possible) Getting set up and oriented is much easier before nightfall. Arrive early to find parking and get settled.
Avoid using headlights once observing has begun.
Take time to get familiar with the layout.
Pets Are Usually Not a Good Idea Even well-behaved animals can create unexpected issues. They can also be a tripping hazard in the dark. Sudden movement in the dark can be dangerous.
Noise or curiosity can disrupt observers.
Check event rules before bringing pets.
Dress for the Weather Nights are often colder than expected. Bring layers.
Wear comfortable shoes.
Consider insect repellent.
While You’re There
Use Parking Lights Carefully Headlights can instantly ruin night vision across the entire field. Turn off headlights as soon as it is safe.
Use parking lights or low beams only if needed.
Avoid pointing your vehicle toward observers.
Use Only Red Light White light destroys night vision for everyone. Use a red flashlight.
Dim your phone screen.
Avoid sweeping headlights across the observing field.
Limit Screen Use Bright screens are one of the biggest modern disruptions. Enable red or night mode.
Keep brightness as low as possible.
Step away if you need to use your phone.
Ask Before Touching Equipment Telescopes are expensive, carefully aligned and sensitive pieces of equipment. Always ask first.
Do not lean on tripods or touch the telescope.
Let the owner adjust focus unless invited.
Respect Astrophotographers Long exposures can be ruined by even small amounts of light or movement. Do not walk in front of cameras.
Avoid shining lights near imaging setups.
Give extra space to imaging equipment.
No Flash Photography Flashes instantly ruin dark adaptation. Turn off flash completely.
Avoid bright phone screens.
Ask before photographing equipment.
Be Mindful of Noise Sound carries easily at night. Keep conversations low.
Silence phone notifications.
Avoid loud music.
Watch Your Step Tripods, cables, and equipment are everywhere. Move slowly in the dark.
Ask before walking through setups.
Be aware of cables and power supplies.
Respect the Line Everyone deserves a chance to observe. Take turns.
Keep viewing time reasonable.
Step aside promptly for the next person.
Children Welcome (With Supervision) Star parties are family-friendly but require care. No running in the dark.
Parents remain close.
No grabbing equipment.
Food and Drinks Spills and messes can damage equipment and disrupt the area. Avoid messy or strong-smelling foods near equipment.
Be careful with open drinks around electronics.
Clean up after yourself.
Smoking and Vaping Smoke and light can affect others more than expected. Smoke can drift across observing areas.
Light from lighters is very disruptive.
Step well away from the group (downwind) if needed.
Give Your Eyes Time Dark adaptation takes time but greatly improves what you can see. Allow 20 to 30 minutes for your eyes to adjust.
Avoid bright light during that time.
Be patient as your view improves.
Don’t Rush the Experience Some of the best moments happen between telescope views. Take time to look up with your own eyes.
Enjoy the atmosphere and conversation.
Let the night unfold naturally.
Ask Questions Astronomers enjoy sharing what they know, their experiences, equipment and the target in the telescope. Ask what you’re seeing.
Ask how the telescope works.
Ask how to get started.
Wrap-Up
Pack Out What You Bring Respect the site and leave it better than you found it. Take all trash with you.
Double-check your area before leaving.
Respect parks and dark-sky locations.
Follow Host Guidelines Each event may have specific rules. Listen to volunteers.
Respect site-specific instructions.

Belt of Venus

The Belt of Venus is a beautiful and subtle atmospheric phenomenon that can often be seen shortly after sunset or just before sunrise. It appears as a soft, pinkish or rosy band of color that stretches across the sky, just above the darker blue-gray shadow of the Earth that rises opposite the Sun. What you’re actually seeing is sunlight scattering through the atmosphere. The red and pink hues come from sunlight passing through more of Earth’s atmosphere when the Sun is low, while the darker area below is literally the Earth’s own shadow being projected onto the sky.

Belt of Venus and the Full Beaver Moon
Belt of Venus and the Full Beaver Moon on Nov. 4, 2025.

The name “Belt of Venus” doesn’t mean it has anything to do with the planet Venus. The term dates back to classical times and was inspired by the idea of Venus, the Roman goddess of love and beauty, wearing a “belt” or “girdle” of radiant color. It’s a poetic name that fits the soft pastel glow often seen around twilight, lending a romantic quality to what is really a simple scattering effect of light.

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What Are Comets?

Comet Hale-Bopp
Comet Hale-Bopp seen before sunrise at the Fort Worth Astronomical Society’s dark sky location near Paradise, TX on March 20, 1997.

Comets are small icy bodies that orbit the Sun and are often described as leftover building blocks from the formation of the solar system about 4.6 billion years ago. Most of the time they remain frozen and inactive in the distant outer regions of the solar system, but when a comet’s orbit brings it closer to the Sun, heat causes its ices to vaporize. This process releases gas and dust, creating the glowing appearance that makes comets visible from Earth.

Comets form in two main reservoirs far beyond the planets. Short period comets originate in the Kuiper Belt, a disk shaped region beyond Neptune that also contains dwarf planets such as Pluto. Long period comets come from the Oort Cloud, a vast, spherical shell of icy objects that surrounds the solar system at distances thousands of times farther than Earth is from the Sun. These comets likely formed closer to the giant planets early in the solar system’s history and were later scattered outward by gravitational interactions.

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Types of Twilight

Venus and Jupiter Conjunction 8/11/25

Twilight is the period before sunrise and after sunset when the Sun is below the horizon but its light is still scattered through Earth’s atmosphere. This scattering bends sunlight around the planet, illuminating the sky even when the Sun itself is no longer visible. Twilight is divided into three main types, civil, nautical, and astronomical, based on how far below the horizon the Sun is, and each represents a distinct stage in the transition from day to night.

Civil twilight occurs when the Sun is between 0° and 6° below the horizon. During this phase, there is still enough natural light for most outdoor activities without artificial lighting. The sky often displays vivid reds, oranges, and pinks near the horizon, including the Belt of Venus, a soft pink band visible opposite the Sun caused by Earth’s shadow rising into the atmosphere, while the brightest stars and planets begin to appear. Civil twilight is commonly associated with the everyday concepts of dawn and dusk and is widely used in photography, aviation, and urban lighting schedules.

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Total Solar Eclipse Considerations

If you are going to be observing the April 8, 2024 total solar eclipse (TSE) from Texas please review the image below. On eclipse day you will need to be somewhere in that shaded area, and preferably closer to the blue or “centerline” during the eclipse. It doesn’t matter whether you are in extreme south Texas or all the way up on the Red River in northeast Texas, as long as you are between the lines and again, close to the blue centerline you’ll enjoy up to 4 minutes and 20 + seconds of totality (weather permitting). That means the Moon completely covering the Sun and providing amazing views of the sun’s corona and other astonishing solar eclipse phenomena.
Path of Totality for Texas on April 8, 2024.
Path of Totality for Texas on April 8, 2024.
If you have never witnessed a TSE here is your big chance but remember to experience the totally eclipsed Sun you must be in between the shaded lines on the map above or somewhere along this path whether it be down in Mexico or farther up into the eastern U.S. or Canada. There is no almost about this! Totality only occurs between the marked lines seen on the map. But be warned, the closer you are to one of the red lines (border of totality) but still within the “path of totality” the SHORTER your totality time. This is why it’s important to try and get as close as you can to the centerline for maximum totality. The reason for the reduction in totality duration as you move away from the centerline is directly related to the fact that the Moon is round. The moon is round and so is its shadow as it falls on the Earth.
TSE 8-21-2017 - Outer Corona.
TSE 8-21-2017 – Outer Corona.

So make your arrangements to get yourself in the path of totality on eclipse day otherwise you are just going to see a partial solar eclipse. The difference between seeing a partial solar eclipse and a total solar eclipse is like hitting the traveling carnival in your local shopping center parking lot or going to Disney World in Florida. Maybe I’m dating myself a little? Do they still even have traveling carnivals? Anyway, there is no comparison. You do not get to see totality with a partial solar eclipse, and that is where the magic happens.

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Messier Observing Program

20 years ago I completed the Astronomical League’s Messier Observing  Program while a member of the Fort Worth Astronomical Society. So what’s the Messier (pronounced MEH-see-yay) Observing program? I’m glad you asked.

M45
Messier 45 (M45) – The Pleiades

The Messier List is an exceptional list of brighter deep-sky objects primarily made up of open and globular clusters, galaxies, planetary nebulae and other nebulae. In my opinion it’s the perfect list to learn your way around the sky.  I highly recommend this program for those new to the hobby. It’s a fantastic way to learn how to star-hop using a telescope in order to find all 110 Messier objects.

You’ll learn a great deal about the different objects that you locate, how to find those objects in the sky and since there are new objects on the list coming into view with the passing of the seasons, it helps maintain the excitement and anticipation of not only your next observing session but of new objects to observe over a calendar year.

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December to Remember – 2020

After a year that won’t soon be forgotten, of course I’m talking about the pandemic, there are a number of celestial events occurring this December that should peak your interest and get you out of the house in the cold morning or night air.

A pair of meteor showers, a pair of conjunctions (one of which will be epic), the December Solstice and a total solar eclipse for sky watchers in South America all happening in December. Throw in Christmas and New Year’s Eve and you have a busy month to be sure. So let’s run them down in a little more detail.

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Planetary Alignment & Mars Occultation

Planetary Alignment

Tomorrow morning (Monday, February 17, 2020) be on the look out for a nice planetary alignment. If you are up early tomorrow morning and have a good view of the southeastern sky be sure to check out Saturn, Jupiter, Mars and the Moon as they line up in that order.

President’s Day Planetary Alignment

Additionally, for those in the DFW area the International Space Station will be making a fairly bright pass (-0.6 mag) right through this line up! In fact, the space station should pass between Saturn and Jupiter around 6:37 a.m. See the screen shot above that I made from Stellarium for more information regarding the alignment and passing of the ISS through them on Monday, February 17th 2020.

Mars Occulation

There’s more! The next morning Tuesday, Feb. 18th the Moon will occult or pass in front of the planet Mars. Complete details of the timing of this event from numerous locations in the U.S. can be found on the International Occultation Timing Association’s (IOTA) web page.
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