2015 Greater St. Louis Area Messier Marathon
All good stories cover the who, what, when, where, how, and why.
Who's this Messier Marathon for?
This Messier Marathon is open to any and all observers with no fees
required. You need not be an ASEM member to participate. To complete the project you should be a somewhat experienced observer and must bring and be responsible for your
own equipment. No loaner equipment will be present and other participants will be busy using their own equipment so you will be unable to share. You should be expierenced enough that you know how to star hop from object to object.
You may choose to image the objects or view them
with a telescope or binoculars. You will have trouble seeing all the objects with binoculars. While not a private event, it is NOT a
public viewing session, but rather an opportunity for personal observing, growth, learning and fun. If
you are interested in public viewing please consider attend one of SLAS's or ASEM's regular
public sessions as described on their webpages.
Registration in advance is not required. We do have a registration form that allows us to collect information for planning and last minute news. Please complete this form if you are interested in getting last minute information on the status of the Marathon or would like to provide us with information about yourself. Completing the form will give us an idea of how many people we will be dealing with.
What's a Messier Marathon?
Charles Messier was a comet hunter in the late 18th and very early 19th centuries. He
developed a list of objects to avoid while hunting comets. The list must have worked, because during his lifetime he discovered over twenty. Today his list is called the Messier List and contains most of the brighter deep sky
objects that interest amateur astronomers. The 110 Messier Objects
dominate viewing at most public outreach sessions and can be recognized with names
starting with the letter "M" as in M31, M42, or M45.
A few times during
the year the positions of the sun and moon are such that most of the Messier
objects are visible in a single night. The sun needs to be in a position that doesn't block out objects and the moon needs to be near New so it doesn't overwhelm them with light.
This Messier Marathon is
scheduled so that a careful and persistent observer can find and view
approximately 106 of the 110 Messier Objects in one very long evening, from
sundown until sun rise. With 110 Messier Objects and 11.5 hours of
darkness, you'll spend about 6 minutes per object, a truly busy night.
When's this Messier Marathon?
This Marathon is scheduled for the night of Saturday, March 21th from 7:00
p.m. until Sunday, March 22th at 7:00 a.m. The 7:00 p.m. starting time
has been selected to give the observer time socialize a bit and set up before dark.
Arriving after dark when others have started observing is discourages since
it will spoil dark adaptation. Arriving late will not make you popular with the crowd.
This particular date has been selected because the new moon will be on March 20th and
won't interfere with viewing. A weather related backup day is scheduled
on Friday, March 20 (yes, the night before) with attention to the Clear Sky Clock and local weather
forecasts. In the event of a poor weather forecast check the "Latest
News" part of ASEM's webpage for last minute changes.
U.S. Naval Observatory data for Broemmelsiek Park:
Saturday 21 March 2015 Central Daylight Time
Begin civil twilight 6:38 a.m.
Sunrise 7:05 a.m.
Sun transit 1:10 p.m.
Sunset 7:15 p.m.
End civil twilight 7:42 p.m.
Moonset 7:54 p.m. on preceding day
Moonrise 7:51 a.m.
Moon transit 2:24 p.m.
Moonset 9:05 p.m.
Moonrise 8:32 a.m. on following day
Phase of the Moon on 21 March: waxing crescent
with 3% of the Moon's visible disk illuminated.
New Moon on 20 March 2015 at 4:36 a.m.
Central Daylight Time.
Where's the Messier Marathon going to take place?
The Marathon will take place at two locations based on the observer's
choice: Broemmelsiek Park in St. Charles County AND Danville Conservation Area in Montgomery County. The main effort will be at Broemmelsiek Park. Broemmelsiek is about 4
miles from the Winghaven/DD exit on I64. Danville is about 6 miles from the
Highway 19/I70 Herman exit (about 1 hour west of St. Louis). Observers in SLAS
and ASEM have been using these public locations for years. Maps to both locations are presented below. Both sites do have cell phone access but neither site has public Internet access.
Make your choice of location based on information presented below and
dialog that you'll see on the STLAstronomy Yahoo group.
| Broemmelsiek Park|| || Danville Conservation Area|
- close to town/minimal drive time to and from the park
- electricity for telescopes, computers, warmers,coffee makers
- rest rooms
- the observatory as a warming room if needed
- good horizons all directions
- darker sky
- good both Friday & Saturday nights
- little or no drive by traffic
- set up by your vehicle
- Friday Night Open House means Saturday night only
- poor eastern horizon for last few objects before dawn
- objects can be difficult when below 45 degrees in the east
- headlights from cars on Schwede and parking lot
- lights from houses in the neighborhood
- drop ins early in the evening wanting views
- light pollution limits dim object--Virgo cluster may be difficult without larger aperture
- carry/tote equipment to pads as much as 100 yards from the parking lot
- limited parking
- long drive--some won't want to go that far
- bare bones--no facilities--no water, restrooms, etc.
- gravel road the last mile
- a long way to go if you're not sure a Marathon is your thing
|Smaller aperture scopes will have trouble seeing the dimmer Messier objects but it is a good "starting" location for your first Marathon. You'll have a better chance of surviving equipment errors and the cold here. || ||You must be self-contained from drinks, food, and layers, to batteries for your scope, red flashlight and any personal devices and it all must last all night. You'll need to plan multiple backups on all systems since you'll be observing for more than ten hours. The "big" scope owners and images will probably be here. |
| || || || |
Click to enlarge or download either map.
You may wish to make the decision about your location on the day of the Marathon based on the weather forecast. You need not worry about telling us which site you wish to attend.
How do I find the Messier Objects?
This St. Louis Messier Marathon is a personal project so you may
choose to use any method you wish. Feel free to use any method
from a GoTo telescope to find all objects all the way to doing the Marathon with a manual
telescope while finding all objects entirely from memory. No matter which
method you use, you will need to do some prior planning including knowing the
best order to view. Observers may use a variety of means to locate
objects including memorizing positions, using binoculars, books, computers,
the internet or star charts for star hopping. The use of setting circles,
either analog or digital is also permissible. Once again, GoTo telescopes can
also be used.
We can't stress strongly enough the need for you to bring either a paper or electronic list with the order you'll use to find the objects as the night progresses. Attempting to follow Messier's order of M1, M2, M3 would be to lead to certain failure since the objects are scattered all over the sky in no apparent order.
SkySafari users can find SkyList for the Messier Marathon in the download section at the bottom of this page.
Why do a Messier Marathon?
Plain and simple...for FUN and the expierence. Observing for a few hours at a time in good conditions is easy. Observing for an entire night in less than perfect conditions is a challenge for your equipment, your methods, and yourself.
Your observing activities will not go
unnoticed; there will be awards in recognition of effort. People observing or
imaging 50 or more objects will receive an 8 1/2 x 11 certificate to be
presented on the spot. Do less than 50 and you'll still probably get one anyway!
Feel intimidated? Don't think you can reach high counts? DON'T WORRY!
- Set your own goals and don't bother with those high counts.
- The marathon is for having fun!
- Set your goals in order for you to learn and have fun!
The guidelines are pretty simple, please read them over if you plan on
- It's an honor system.
- No one is going to be looking over your shoulder to verify your
- Have an observing list to check off your observations as you go.
- Find an object.
- Observe/image it with your eye through the main eyepiece of your
- Mark off the entry.
- Go to the next object.
More Marathon Information
- Check the forecast low for the evening in advance and dress accordingly with many layers on both your top and bottom. Cold feet can make you miserable really quickly. If you get cold during the Marathon walk around for a few minutes to generate some heat.
- A description of the object is not necessary, especially since it will
take precious time needed to find the remaining objects--remember you should average about 6 minutes per object.
- A Messier Marathon does not lend itself to the Astronomical League's
Messier Observing Program... with the AL's Program you study the object and
make notes, with the Marathon it is more a "yep, it's there and I saw it" thing.
- Study the list sequences, or use your own. Be prepared for the extremely likely case it should become cloudy and the selected sequence cannot be
- Although it is possible to do the Marathon with a 4-inch or
smaller telescope, or binoculars, it is not suggested; unless you are an experienced
observer. Broemmelsiek will probably will need bigger scopes to get all objects.
- Plan on arriving at the site at least 30 minutes before sunset to provide
time to setup your telescope and for it to reach thermal equilibrium. This
will also give you time to meet old friends and make new ones.
- If you are NOT going to stay all night:
- Park near the entrance so you don't disturb others when you depart.
- Please give a shout a few minutes before leaving and then again as you
are about to depart.
- This will give observers time to hide so the light doesn't interfere
with night vision.
- Please ensure your red filtered flashlights are in good working order and
PLEASE no white lights between sun set and sun rise.
- For more information on
star party etiquette click here:
- Know how to turn the interior dome lights in your car off and please do so before dark.
Once again, registration in advance is not required however we do have a
registration form that will allow us to collect information for last
minute news. Please complete this form
if you are interested in getting last minute information on the status
of the Marathon or would like to provide us with information about yourself.
Thanks for looking and hope to see you there.