12s22 Staff List & Course Information, Part 1 of 2

UPDATED FOR 2002 IAP

OVERVIEW

Section Instructor: Andy Rivkin, 54-418, 452-2304, asrivkin@mit.edu

12.409 Classroom: 37-562

This seminar covers background for and techniques of visual observing and imaging with a small telescope. As the physics and math involved are elementary, 12s22 does not make the brain-bashing problem-set demands characteristic of many other MIT courses.

However, you will need to invest a fair amount of time and care in your work for the course, and the time investment tends to collide with some of your prime homework-time (or whatever else you may want to do during IAP). Clear nights in Cambridge are rare enough that we must take full advantage of each one: sometimes we're extremely fortunate, with a section getting 5 to 7 clear nights during the term. Sometimes we're extremely UNfortunate, and a section gets only 2 or 1 (or less?) useful nights. As any given class night may be an `observing night', you must be prepared to devote several hours each class night to 12s23 during the three weeks it runs.

12s22 uses six 8-inch reflecting telescopes; you'll be paired off and work two persons per scope. We set up the telescopes on campus until you've had enough experience to be able to take full advantage of a darker locale. Sometime around mid- to late-January we'll move our observing to Wallace Observatory in Westford, MA (less interfering lighting) as the weather and interest warrants.

SECTION ASSIGNMENT RITUAL:

Limited enrollment.
Note that the structure of 12s22 makes taking it as a ``listener'' (audit) a mostly pointless idea, and can complicate things for those on credit. Normally ``listener'' status isn't permitted for this seminar, but please see Andy if you feel you've a good reason to audit 12s22 rather than take it for credit.
Classes will begin meeting evenings starting 7 January 2002.
If for some reason you are unable to attend the first meeting of your assigned section, you must contact your instructor ahead-of-time to arrange to attend another section's first class, just for the first week. Otherwise, we'll assume you're dropping 12s22 and will offer your slot to the next person waiting to join that section.

MEETING TIMES and Time Management:

Since we're cramming a semester's worth of work into IAP, the class will meet Monday through Thursday at 7:00 pm for each of the first three weeks of IAP (that is, the weeks of 7, 14, and 21 January). The 21 January class will not meet due to Martin Luther King's birthday.

A session on campus will end no later than 10:00pm.

On clear nights at Wallace (later part of the term), plan being dropped off back on campus no later than 12:30am. If necessary, we can shift the meeting time of the section with unanimous consent to be able to better accomodate people's schedules. With the early sunset, an earlier meeting time could possibly be worked out, though we don't want to impinge on dinner time...
Take special note:

IF THIS SEEMS TOO EXTREME A TIME COMMITMENT PLEASE RECONSIDER NOW WHETHER THIS SEMINAR IS REALLY THE RIGHT ONE FOR YOU!
Keep in mind also that when we get to imaging you'll be spending some non-class time processing your images.

Each section of 12s22 begins officially at 5 minutes past the published start time (as is traditional for all classes at MIT); it's to your advantage to be on time for class, to obviate loss of observing time or having to make it up by ending later than usual. (`Missing the van to Wallace' is a very demoralizing way of losing a clear night while at the same time chalking up an unintended unexcused absence...) If you know ahead-of-time you have a time-conflict on some particular class night which might delay your arrival 5-10 minutes, please contact your instructor beforehand so that he/she knows to wait.

GRADING:

Your pass/fail grade will be determined using two criteria:

ATTENDANCE: As 12s22 is a hands-on `techniques and experience'-type course, we state the following for the record: in order to pass 12.409, you must attend your section each night. Actually, this will probably be the most challenging part of this seminar - arraying your other commitments to handle one night a week of observing.
- It's possible that, despite all your best efforts to pick a class night you can make every week, some unforeseen illness, personal emergency, or critical schedule conflict will crop up during the term on a class night and force an "excusable" absence. If this happens, contact your section instructor promptly, before the class if at all possible. We don't hassle you for one excusable absence, although it's virtually guaranteed to be on a clear night for your section. However, requests to excuse more than one absence are looked upon with extreme disfavor, and generally speaking are not granted except in extraordinary circumstances.
  A student puts it succinctly: ``two misses equals death''
  
  Normally to make-up a class we'll give you a written lab exercise to complete. It can be difficult to arrange to make-up a class by attending another section, since sections of 12s22 are usually quite full and non-uniform weather causes them to diverge soon after the first week anyway.
- Absences for reasons under your control are not excused, such as ``punting'', ``have to prepare for a quiz scheduled/paper due for the following morning'', or ``unprepared for class'' (too tired, didn't bring warm clothes, etc.). In case of an unexcused absence you'll be encouraged to drop the subject and try again in some future term as an alternative to the failing grade you otherwise would receive. We also reserve the option of counting repeated tardiness as an unexcused absence.
IF THIS SEEMS TOO EXTREME A TIME COMMITMENT, PLEASE RECONSIDER NOW WHETHER THIS SEMINAR IS REALLY THE RIGHT ONE FOR YOU!
OBSERVING NOTEBOOK: You'll need to have some sort of laboratory notebook to use for recording observations and writing calculations. In 12s22, it will be inspected by your instructor as a major criterion for evaluating your performance in the course.
Please get yourself an observing notebook before your first 12s22 class. An 8.5- by 11-inch spiral-bound notebook of about 50 pages has always been more than enough for an entire term (even assuming piles of clear nights), so that's what we recommend. Some observers prefer a notebook with lined or graph-paper pages (to help in reproducing angles and making sketches) though plain paper should be adequate for our purposes. You need a notebook in which the pages are bound together, since looseleaf notebooks tend to be clumsy if you're out working on a windy rooftop. (Plus, fishing white looseleaf sheets out of a white snowdrift in the dark a few stories down is kind of a pain.) Spiral notebooks are particularly well-suited for 12s22 work: you can conveniently fold the cover all the way back, and can include your handouts using looseleaf rings. (Hint: avoid black covers; they're impossible to locate in the dark.) Please arrange to have this notebook be exclusively for your 12s22 work, so that its being collected for inspection won't deprive you of your notes for any other classes you may accidentally be taking. Please be certain also to bring your notebook to ALL class sessions (including the first one).

CLASSROOM:

Our laboratory classroom is Room 37-562. To get there, first be aware that the Bldg. 37 ground-level doors may actually be locked at 6pm as advertised: if so, you'll need to come inside through the second floor of 35 or the third floor of 39. Once you manage to get in, take one of Building 37's two elevators to the 5th floor. Turn left as soon as you exit the elevator; the first door past the elevators on the same side of the corridor is marked as being Rooms 37-552, 556, & 562. Behind the door is a small corridor with 4 doors off it; 37-562 is at the far end, directly in front of you. Stay on path; avoid land mines.

TEXTBOOK:

Most of the ``material'' (such as it is) for 12s22 is distributed as a set of handouts. However, if you don't yet know the major constellations and bright stars you should also purchase The Stars by H. A. Rey, which is available at the Coop as a 12s22 ``text''. Even if you already know your way around the sky, but learned to picture the constellations by a method other than Rey's superior method of showing them, you might want to get yourself the book since we'll many times describe locations of stars by where they fit into Rey's pictures (e.g. ``Perseus' left armpit'').

EXPECTED STUDENT PREPARATION

Expected student preparation for an evening of observing includes coming to class on-time, awake, fed, and warmly dressed (see next paragraph).

A few words about ``Evening Attire for the Sensible Observer'':

The reality of observing (or more properly, one reality, for there are several) is that you can get cold, all the way from late autumn through early spring. In particular, rooftops are almost always breezy (therefore cold) and Westford, MA is an ``outlying area'' (therefore cold). (Lest you think summer observing is completely trouble-free, forget not Mr. Mosquito.)
When observing you'll want at least one EXTRA layer over whatever you usually find effective for a given air temperature; I recommend dressing as if the air temperature where you'll be observing were an extra 15 to 20 degrees F lower than what the thermometer reads. This extra is necessary because for the most part you're NOT MOVING AROUND enough to generate any body heat that way. Here's what I wear for wintertime observing (since it's really un-cool for the instructor to get cold...):
- Long underwear (recommend two sets if T below 25 degrees F)
- Heavy trousers; heavy shirt (wise to bring wool sweater as well)
- Wool socks over my ordinary socks
- hiking boots (mine aren't specifically insulated but they're made out of thick stuff; my wool socks do the insulating.) Insulated boots are good also; sneakers are usually inadequate and are NOT recommended.
- wool neckwarmer or scarf
- wool hat (Having some hat is CRUCIAL, since most of your body heat is lost through your head.)
- warm gloves (I use a thin polypropylene glove underneath my bulkier well-insulated Thinsulate(TM) gloves, so when I need to remove the bulky ones for short periods of time, to write something or make a fine adjustment, I still have some covering over my hands.)
Like so many other things in life, observing is significantly less fun than it could be if you're underdressed for the occasion. So, if you err, arrange to do so on the side of preparedness: if you bring too many warm clothes you can always decide you need not wear all of them, but if you bring too few, you lose, in a most uncomfortable way.

12s22

Last modified 2002 Jan 7