Handleiding MoveTO
Contents
1. ccccceeseceeeeeeeeeeeees 11 You have discovered something What is its POSITION cceccccesseccceesececeeececeenseceseeecesseneceseeees 12 Gerard van den Braak www sterrenwacht eu 2 Purpose MoveTo is meant for mounted telescopes without a GoTo system MoveTo has been developed to find objects in the sky without arithmetical work It is an alternative for a GoTo mount MoveTo has got a data base of over 13 000 objects MoveTo also allows manual input e g for Moon comets or objects that are not included in the data base Therefore you will need to know the coordinates MoveTo also calculates the position of an unknown object found with the telescope MoveTo also calculates o Gregorian date i e civil date o Julian date common practice for astronomical observations o Local time CEST or CET o Local Sidereal Time LST Conditions 1 2 MoveTo is an Excel spreadsheet program Pointing the telescope to the south fix the right ascension disk of the mount preferably on the 12 hour position If this is impossible for any technical reasons then fix it on some other full hour Fix the declination disk on O degrees declination 4 The more accurate the graduation of the disks the preciser the reading out will be possible Structure The Excel spreadsheet program has got four worksheets named as follows MoveTo Calculations Catalogue Information Operation The MoveTo sheet consists of two parts Th2. data base input after manual input Local date 2011 08 10 Julian date 2455783 9 RA dg m S 2 30 49 UTC Oe SE S Local 1 AE 0 Local Siderial 6 rschel400 H Caldwell C Collinder Cr Trumpler Tr version 2011 04 OGerard van den Braak Gerard van den Braak www sterrenwacht eu 6 Settings Now let us look at the right side of the MoveTo sheet It consists three items namely e Personal corrections v RA amp Dec scales When you have had MoveTo calculate where to point the telescope there is every chance the ob ject is not in the field of view Probably there is an inaccuracy in your default setting of the RA disk and or the Dec disk Minutes and seconds can be corrected only If the difference is larger the disk has to be moved In the available fields for personal corrections ad justments may be filled up so that from now on the program will take these adjustments into ac count Suppose the RA turns out to be 45 seconds further than the calculated position then fill up 45 there e personal settings v v v v Time zone This is just information and is not used This information is in the computer clock Daylight saving time We are all familiar with winter and summertime or daylight saving time It is necessary to specify whether it is winter or summertime Therefore fill up O for wintertime and 1 for summertime daylight saving time Local Longitude The longitude of your place o
3. not correct as you have filled up something in the part Set tings e g a personal correction for RA scale and or Dec scale or your reference point for RA is not O but 7 The result of all this is that the actual position cannot be read out from the setting circles After filling up the data of the setting circles of your telescope into the six cells below Input manual and then pressing lt F9 gt the actual position of your ob ject can be read out in the box actual object position after manual input Mind that during this ac tion and the pointing of the telescope to your object time has continued It indi cates the position of just that moment The indica tion cannot be accurate to a second In a MoveTo sheet have pretended to go and ob serve NGC1977 The pro gram calculates the desired telescope position and indicates this in the six cells of the left box below Move telescope To After that have filled up the same data in the six cells below Input manual as if these are the data from the setting circles After an lt Enter gt you will see the actual position of the found object in the right hand box below actual object position after manual input Check If you now look at the left hand box you will read the same values for NGC1977 i e the data from the data base So the calculation is correct Gerard van den Braak
4. Gerard van den Braak www sterrenwacht eu 12
5. actual object after data base input m A 4 m 1 S 30 S 0 manual input dg 2 gr oy 22 e e m 30 m 1 S 49 S 0 RA scale Dec scale fat te Arn COII personali setung Time zone Daylight saving time Local Longitude RA setting circle locked on date amp time Local date AMEME ELG UTC Local Local Siderial Contents PU OO SO rasta cctnatnede E 3 OOH ONG saer ee ge ecoste chee desany sovseunectecyetdraans tee E enero nes tncobeceonienurserseuceeos tens doce 3 Ce CN 5 sac ce ctem tite scat E E E tidus aseuetelsemen ade snnedeaa muse basenece te sanchatecasetcaacesemtesanthetatunsnaiusosesecteeae 3 OT AO Mile acess ieee cea ctw crn ot cries ec stings reese este ese sane E Susae esate E SA 3 Protec UOD merece rennet en ca E en ee ere ee 4 Exercise 1 approaching data base objects ccccescccccsssccccesseceeeesececeeeceeeenscceseueceseuneceeseneceeseneeeetas 5 Pere L MOCE S DCE tc ee eee en eee ne ee ee eee eer 6 NS rater sorter N pease egucia iets peta eusecin ccustorsa unbsune E E E atin ean eeieae 7 Exercise 3 actual object POSITION ccceseccccesseccceesececceeccceeusececeuececeuneceseeuccesseecetsuaecessegecesseneeetas 9 GV STO In Or ACU CS acirasaseas serena enn ceacavetorsias TE 10 How to use MoveTo with the data from the data base cccccccssssssseeecccccesaeeseeecceesssaaaseeseeeess 10 How to use MoveTo without the data from the data base so manually
6. correct Every second later you should move the telescope a little further as you know to see the desired object Therefore it is recommended to press lt F9 gt once more after adjusting the telescope in order to make sure that the telescope is still pointing into the right direction Every second counts Gerard van den Braak www sterrenwacht eu 9 MoveTo in practice How to use MoveTo with the data from the data base 1 Before using MoveTo first fill up the Settings as explained before 2 Type in the field with standard M1 the desired object e g NGC1977 Re fer to Exercise 1 3 lt Enter gt Press lt F9 gt for recalculation or an extra check 4 Move the telescope to the RA and Dec indicated in the six cells below Move telescope To respectively h m s for the right ascension and dg m s for the declination In the next example it reads RA 8 45 16 Dec 4 50 40 Gerard van den Braak www sterrenwacht eu 10 aatay cC nN fi ALTA i l A arth ArI F h ra A ry f g a mw d Tha a A Ca W mLa h ACAI Cor wa DT y How to use MoveTo without the data from the data base so manually Suppose you want to look at a planet the Moon or any other object not included in my data base You ought to know the coordinates of course or else it does not work These coordinates can be found in planetarium programs or the like manual 1 Type your data in the 6 cells below a 2 manual
7. e left part with the caption Input and the right with the caption Settings To make the program do its job press lt ENTER gt and for every next calculation lt F9 gt Gerard van den Braak www sterrenwacht eu 3 Protection The four tabbed sheets at the bottom are protected The sheets Calculations Catalogue and Information are protected with a password so that only the undersigned can change them Making changes in the MoveTo sheet however is necessary for you need to adapt the personal settings to your personal situation as you know This sheet is also protected it is true but protected without a password In order to make any changes it is necessary to unprotect the sheet a a i my cia Start Invoegen Pagina indeling Formules Gegevens Controleren Beeld ABC ac Onderzoeken 4A Verwijderen 4 Opmerking weergeven verbergen H g Synoniemenlijst vorige 49 Alle opmerkingen weergeven Spelling Nieuwe 4 oe Beveiliging Werk is Vertalen opmerking I Volgende Inkt weergeven blad opheffen beveili Taalcontrole Opmerkingen e in Excel 2007 and later click Unprotect sheet and make your changes NB the text of the button has changed into Protect sheet See picture below Gegevens Controleren Beeld Clicking on this button results in the appearance of a dialog box Opmerking weergeven verbergen Hi 3 Go f il e e e Alle opmerking
8. en weergeven R gd Gebruikers te in which you can specify how Blad Werkmap Werkmap t Weel geven beveiligen beveiligen r delen iE Wizigingen i you Wa nt to protect the Movelo p s Wijzigingen Blad beveiligen x sheet V Het werkblad en de inhoud van vergrendelde cellen beveiligen Wachtwoord voor het opheffen van de bladbeveiliging Do not remove the tick at the Alle gebruikers van dit werkblad mogen top left and the one before Se Vergrendelde cellen selecteren Ontgrendelde cellen selecteren l Celeigenschappen Kolommen opmaken So just click OK and the sheet is l Rijen opmaken l Kolommen invoegen protected again C Rijen invoegen Hyperlinks invoegen _ Kolommen verwijderen Do not forget this or else you l Rijen verwijderen Do not fill up a password lect unlocked cells are running the risk of losing data Gerard van den Braak www sterrenwacht eu 4 Exercise 1 approaching data base objects Click on M and then a few times on lt ENTER gt You will see that only the free cells can be ap proached The cell with M1 is the input cell for the 13 000 objects stored in the data base Therefore simply type in this cell for Messier objects M 1 110 type e g M33 NGC objects NGC type e g NGC1234 IC objects IC type e g IC66 Caldwell objects C 1 110 type e g C41 Herschel objects H 1 400 type e g H93 Collinder objects Cr 1 471 type e g Cr 12 Trumpler
9. f observation has to be filled up here Default is 6 7 for my res idence Zuidlaren Mind that this is east of Greenwich If your location is west of Green wich just put a minus sign before it So fill up here your local meridian i e the one of your location RA setting circle locked on As the system needs a reference point we have fixed the RA setting circle See Conditions Gerard van den Braak www sterrenwacht eu 7 item 2 After having fixed the 12 hour point at the indicator arrow fill up 12 here The ex ample picture shows 7 because have put the 7 hour point opposite the indicator arrow The program provides for this option because the indicator arrow may have been placed somewhere at the side or you may have placed it there yourself for an easier reading out NB Changing these values can only be done when the sheet protection has been removed Refer to the above section Protection It may come in very handy to fix the RA hour disk on e g the 12 hour setting point This will prevent negative numbers so that it will result in a more agreeable operation have fixed my disk on the 7 hour point Furthermore have pointed cheap security cameras to my RA and Dec setting circles which can be read out on a monitor Now can operate my telescope remotely MoveTo calculates the desired telescope position can read out the telescope position from the monitor can operate the RA and Dec w
10. ith my remote controlled motors and move the telescope to the desired position while looking at the monitor Refer to my personal solution http www sterrenwacht eu datasheet 20equipment 20Camera 20RA readout htm en http www sterrenwacht eu datasheet 20equipment 20Camera 20DEC readout htm e date amp time These are the results of calculations You cannot change anything here It is just information The whole system is driven by the computer clock Therefore see that the clock is running on time As a rule it is automatically synchronized as soon as you are connected with the internet Gerard van den Braak www sterrenwacht eu 8 Exercise 3 actual object position Type M12 in the field from data base in the column Input and then lt Enter gt You will now see the actual object position on the left of the group actual object posi tion below after data base input These are the data of M12 from the data base Now look at the left box below Move tele scope To and you might see e g It turns out that the telescope has to be moved to another position than the box after data base input indicates This is because in this example the RA setting circle is locked on 7 and not on 12 and of course because M12 is not in the south but somewhere else in the sky After pressing lt F9 gt some time later you will find that the values of the RA have changed And that is
11. m 30 m 50 2 lt Enter gt Press lt F9 gt for recalculation or an extra check 3 Move the telescope to the RA and Dec indicated in the six cells below Move Move telescope To telescope To respectively h m s for the right ascension and dg m s for the S RA declination In the next example it reads RA 8 54 36 Dec 4 50 40 NB In the left part of the MoveTo sheet the calculation part below there are two columns namely from f from data base manual database and manual As you have probably noticed the MoveTo sheet NGC1977 m consists of two calculation units The 35 left one for the calculation of the ob a jects included in the data base and the right one for the calculation of the Move telescope To objects not included in the data base The unused cells will not turn blank RA h 8 be aware of the column you are busy Des or with 4 Stay in the same column actual object position So at you read after data base input after manual input out the actual object position in the RA h left column in the box g Dec gr At manual you read out the 4 data in the right column in the box Gerard van den Braak www sterrenwacht eu 11 You have discovered something What Is its position If you have discovered an unknown object in the sky you would like to know its coordinates So others will also be able to find it Just reading out the setting circles is
12. objects Tr 1 37 type e g Tr17 MoveTo is indifferent to capital letters Type without interspacing Gerard van den Braak www sterrenwacht eu Exercise 2 protecting sheets a Remove the protection of the MoveTo sheet b Change the local longitude but reset it to 6 7 c Protect the sheet again NB All the tabbed sheets are protected Do not forget to protect the sheet again after the removal of the protection and the other changes made in the MoveTo sheet If you want to keep the changes made then save them If you have entered e g M106 Excel will gather this as a change and will ask at closing down if you want to save the changes even if you have not changed anything at all It is wise not to save this change so that you will not run the risk of losing cell information It is possible to make a summer and a winter version of MoveTo This may come in handy because now you are always obliged to make a choice between the two versions and this prevents an error at the turn of the daylight saving time Save aprogram version with daylight saving time 1 and name it e g MoveTo Summer Now copy the complete program and then change the daylight saving time from 1 to 0 and name this version MoveTo Winter MoveTo Calculation TOO Calculate lt enter gt lt f9 gt Input Settings RA scale Dec scale Time zone 1 BEULEUM 1 Local Longitude 6 7 RA setting circle locked on 7 after
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