<6:1r>

Mr Isaac Newton

Former Aquentance maketh me moore bould To trouble you with this In which I have sent you Inclosed a Table of Observations of A Comet that appeared To us in Maryland Aug 14th: 1682: Till September 12th: 82: whilest it weare a Morning Comet having {Occations} from whome made but Litle Observations thereof & therefore have Sett them downe at Randame on the bottom of the Table Onelye in Right Ascension and declination But from August 22 to September 12: for Every Night Except September the 1: 6: 8: & 9 sometimes being from home & sometimes Cloudey after the 12th day of September we had for a weeke or better very Cloudey Evenings Till I suppose that It had got So neare the Sunn that no moore Observations with us could be made yet I thought once after being the 14th of September; that I had seene it betwene Two Clouds neare uppon setting in the West{.} If So it Seemed to me Somewhat Retrograde but I had but a small glimpes theareof & therefore could make no Observations thereof But I suppose that Observations might be maid Long after in Most placeis wheare the wether was cleare: I suppose I was one of the first that Tooke notice thereoff in Maryland Being August the 14th a morning Comet in the NorEast about 10⁢degs Northwards of the North heade of Gemini Castor But seemed To mee to come to the Meridian with the South head of Gemini Pollux, or somewhat after{.} It had than no Streame Cord or Taile at all that could be deserned Eather by the Eye or Elce by a prospective Glass as I could deserne neather would I trust my owne Eye in the cais but called upp others which I thought might be stronger sited To have there Judgement of it for I was Suer that no Such star did belong to that place nor To any Other that I was aquented with but they could not deserne any Streame & would have perswaided me that it weare a common Ordinary Star but being so neare day & unprovided that I could make then but Litle Observations thereof onley I doe suppose that the declination then was Betwene 41⁢d: & :42⁢d North & Right Ascension about 112 degrees But whether afterwards it did Increase in declination Norwards as it seemed to me the 17th about 3⁢hors=30⁢min to be in neare conjunction with a Litle Star of the 3 or 4th Magnitude being To the Southwards of the 2 small Bear Stars in the Right forefoot of the Great Beare as I take it which Small star cometh partley to the Meridian Betwene both of them they Being 1 degreedeg As under declination 48⁢deg or 49⁢deg the Right Ascension about 130⁢degs declination of which {Small} Star about 43⁢degs North{,} the conjunction as neare as I could make it onely by the Eye weare about 3⁢ho:=30⁢m morning the comet being about 30′ or 40′ Southwards under it So by that Rule the Comets declination weare then about 42⁢d=15⁢m this was the nearest conjunction of any that I Observed & I give you Notice thereof because I suppose that the Comet may have greater paralax than ether Venus or Mercury It being than so swift in Motion as I suppose about 7⁢degs & sometimes neare 8 degrees in 24 hours{.} To finde which small fixtd star Imagine a Right Line from the Great Bears Back To the Litle dog Star & it will pass by it or Nearly cut it < insertion from inline > [Editorial Note 1]Figure < text from f 6:1r resumes > Or a Right line from the Pole star Betwene the Two Small Stars in Great bears forefoot & So Southwards about 48⁢d=15⁢m from the Pole Star you than cannot well miss it{.} on the Backside the Table is a Table of the Pole Stars declination To Every 5th degree of the Equinoct {E} or Right Ascensions Something Lightly Rune over & Allso the difference of declination of fixtd stars for 100: years for Every 5th degree of there Right Ascension the Table I finde of excelent use To finde ye declination of stars by the Bow or fore staff or to finde out any unknowne star whose Right Ascension & declination is given by the helpe of the Pole Star & others severall wayes. I could wish that you would furnish me with a Table of Right Ascension & declination of fixed stars for the yeare 1700: & as many as you please So that they Exceed Not the 3 or 4th Magnitude or Rather than faile there Longitude and Latitude or Boath will do well for I finde by Severall Tables that I have by me they differ in Right Ascension very much So that If I should Take that panes To worke by the doctrine of plane or Sphericall Triangles by distances from Other Stars by the fore staff or the like without I knew ther True places I should make worse worke perhaps than I have done here in this Table though I had far Larger Instruments For by the Calculation of this Comet I had my Quadrant but 12 Inch Radius being of my owne makeing with such stuff as I could Gett being wood which is heare far more apt to warpe & shrink then in England{.} therfore I would desire you to looke over my Table & Examine it with yours & give me If you please an Accompt of the difference for this day Receveing a Letter from Brother Edward Storer <6:1v> That it was first seene with you Aug: 7th: 82 which was 7 dayes before wee Tooke notice of it heare but he mentioned not what time it Ended with you who Righteth thus: The Same Comet (as is Supposed) which appeared december & January 1680: Appeared about the 7 day of Aug this yeare 82 in the Evening but not with So Long a Streame as it appeared before with but was not to be seene with them about 3 weekes after; & thats very strainge that there cann be such a supposed supposition as though a fier thats once burnt out & consumed the wood or stuff that feed it cann be Reneued againe By that feuell that it hath consumed It is a pretty conceipt If it be true; this Comet Cast the streame Severall wayes heare first it was upright & held so for severall dayes than it bended somthing bowing towards the pole Star than bowing more & moore so that it pointed more & more towards the pole after wards pointed partly upright & than againe Contrary pointed to the westwards towards the South &c{} I sent unckle Babing a Letter daited about March 28: 1683 with my Observations more at Large by Altitudes & Azimuths in which I mentioned Gadburies 20 years Ephemeridies & a Good Large fore staff about 4 5 or 6 foot Long If it could so that it bow nor bend not by the wight of the vanes which might be very usefull to me & Likwise in it did desire you If that you could Conveniently furnish me with a Table of Right Ascension & declination of some of the Principall fixed Stars &c I sent him a Letter daited about May 22 1682 which as far as I can understand by Mothers & Brothers was not come to hand September 26: 82: which Least his should faile againe makes me the more bould to Trouble you with this Heare hath bene of Lait years besides this yeare many Notable conjunctions & oppositions both of Sun moon planets & fixed Stars which by Reason of our great difference of Longitude To you which I judge may be about 74 degrees or better which If well observed might be a great helpe to Astronime: Heare hapened A Lunar Eclipes: 1681: the beginning Aug 18⁢day=08⁢hor=33⁢min=00″ the midle 18⁢day=10⁢hours=13′=30″ the Ende 18⁢day=11⁢ho:=54′=00″ the Continuance 3⁢ho=21′=00″ parts Eclipse 34 & 12 or there Abouts{.} So If you please you may give me an accompt of our Longitude from London or Cambridg: January 17: 16823_ Sun Eclipsed in maryland the beginning about 8⁢ho=40⁢m: the End about 10⁢ho=30⁢min: the Sun Eclipsed from 16⁢degs To 29⁢degs of altitude the parts Eclipsed about 5 digets on the undermost parte of the Suns bodey but I supose with you it was far greater{.} Heare hath beene of Late 2 great conjunction of Saturn & Jupiter & the third now very neare which I suppose will be before the Midle of may: the first conjunction as neare as I could well make it by reason of cloudey wether was with us Saturn October: 14: About noon Saturn Elivated Above Jupiter 12 minutes semeing by the Ey To be twice his bredth from Jupiter but by prospective Glass above 4 times: the Second conjunction of Saturn & Jupiter weare as neare as I could well make it the wether being Likewise cloudey for a day or Two before & affter Saturn Jan 27 about midnight Saturn above Jupiter about 10 minutes there hath beene severall notable Lunar Eclipses heare of Late the Moon & Aldebaran the Last yeare the Moon hid Aldebron severale times one I see which I suppose Centarall: here hath bene Notable conjunction of Cor Leonis & Moon & Likewise of Moon & Leo {Symbol (heart symbol) in text} But I shall not trouble you with heare haveing no more at present but my dutye To unckle Babington & my Best Respects To all my frends with you I Rest at your Command To serve you Arthur Storer

From Patuxant River in Maryland: at Mr John Hunt's Neare Coll{r} Joules at Indian Creeke
Aprill 26: 1683: I have Likewise sent one dated with yours To Brother Storer & 4: dated Mar 28: 83: vizd One To Mother Brother John Joseph & unckle Babington &c which If this come to hand if you have that Opertunity you may aquent them &c

<6:2v>

For Mr Isaac Newton Math:
of Trinitie Coledge In Cambridg
Leave this at the Post house in
London to be sent as
before saide
{2}

<6:3r>

_____________________________________________0 _____________________________________________A Table of the  Observations  of A comet  yt  appeared in Maryland ☽ Aug  14th  : To :   Sept  12: 1682___________________________The Longitude from London about 5 hours: or  74⁢degs  ye  Latitude  38⁢d=30⁢m0 __________________20=55declination210=30Ri. Ascent AugustTimepresentye  CometsAltitudeCometsAzimuthfrom    E.  WestCometsDeclinationArcturusAltitudeArcturusMeridiandistanceRigt  Ascentof MediumCœlijCometsMeridiandistanceCometsRightAscensionCometsCulminatCometsLongitudeCometsLatitudeNorth ye  dayHors  :  mindegrs  :  mindeg  :  mindegrs  :  mindegs  :  mindegs  :  mindegrs  :  mindegs  :  mindegs  :  mindegrs  :  mindegrs  :  mindegrs  :  min 20morning4=5616`=15´38`:NE:15´39`:N:45´152=30.· 20past noon7=3038:N:15157=00.· 21past noon7=3035:N:30164=30 ♂22After Noon7=3810=0034:N:0032:N:3732=0065=09275=39104=14171=25♍  20=3808:♍:2226:N:22 ☿237=2912=53·27:N:3529:N:2833=0363=47274=17096=51177=26♍  27=1215:♍:0725:N:51 ♃247=5809=1026:N:1026:N:1426=5871=34282=04099=32182=32♎  02=4521:♍:0624:N:54 ♀25·7=01·19=4514:N:1223:N:0036=5058=55269=25082=27186=58♎  07=3526:♍:3623:N:45 ♄268=0308=5518:N:2019:N:5224=14.·75=03285=33094=25191=08♎  12=0602:♎:0022:N:35 ☉278=0209=1514:N:2016:N:5623=4875=38286=08091=35194=33♎  15=4806:♎:2921:N:16 ☽28·7=21·16=5005:N:2014:N:2630=4666=42277=12079=48197=24♎  18=5210:♎:0320:N:07 ♂297=0919=1200:N:2012:N:0432=4564=12274=42074=57199=45♎  21=2413:♎:2518:N:53 ☿307=2515=3000:N:2009:N:5028=45·69=22279=52077=58201=54♎  23=4016:♎:2217:N:40 ♃317=4012=0800:N:2007:N:4725=06·73=47284=17080=39.·203=38♎  25=3018:♎:5216:N:25 ☿  Sep017=3005:N:55205=05♎  27=0320:♎:5915:N:15 ♄02⁝7=33⁝12=3004:S:4004:N:1525=3673=19283=49077=25206=24♎  28=2622:♎:5314:N:11 ☉037=0716=1509:S:4002:N:4529=2368=21278=51071=21207=30♎  29=3524:♎:3013:N:11 ☽047=1414=1509:S:4001:N:2927=2670=56281=26072=56208=30♏·00=3825:♎:5512:N:22 ♂057=0714=15011:S:4000:N:19⁝28=00⁝70=14280=44071=16209=28♏·01=3927:♎:1611:N:37 ☿067=0000:S:44210=23♏·02=3528:♎:3110:N:58 ♃077=0614=00013:S:4001:S:39⁝27=12.·71=15281=45070=35211=10♏·03=2529:♎:3610:N:23 ♀087=0002:S:30211=45♏·04=0100:♏:2709:N:48 ♄097=0003:S:20212=10♏·04=2701:♏:0809:N:08 ☉107=1709=0012:S:4004:S:1022=4577=00287=3075=00212=30♏·04=4801:♏:4508:N:28 ☽117=0510=0014:S:4005:S:00⁝24=06⁝75=15285=4573=00212=45♏·05=0302:♏:1607:N:46 ♂12:7=07:09=0014:S:4005:S:4023=2476=11286=4173=45212=56♏·05=1402:♏:4007:N:12 ☽  Aug14hours       5     mor_42=N00111=30 155     mor_42=N00117=15 165     mor_42=N00123=30 175     mor_42:N:00130=00 185     mor_41:N:40137=00 195     mor_41:N:00144=30 205     mor_39:N:45152=30

<6:3v>

FixtStarsdifferenceofdeclinationFor 100:years☽orStarsRightAscensionAno:1700To findAny Starsdistancefrom  yePole Star:NorthdeclinationSubstrSouthdeclinationAdd To – –FixtStarsRightAscensionAno:1700:differenceofdeclinat_,100yeare min—degresdeg: mindegreesmin 34087=45020 34587=44015 331087=43010 331587=44005 322087=4636034 312587=4935534 303087=5335033 283587=5834533 264088=0334032 244588=1033531 225088=1733030 205588=2532528 176088=3432026 1565—88=4431524 127088=5431022 97589=0530520 68089=1630017 38589=2729515 09089=3929012 39589=512859 610090=032806 910590=152753 1211090=27270✱0 1511590=392653 1712090=512606 2012591=012559 2213091=1125012 2413591=2124515 2614091=3024017 2814591=3923520 3015091=4723022 3115591=5422524 3216092=0022026 3316592=0521528 3317092=09.·—210—30 3417592=1320531   34  _✱18092=1620032 3418592=1719533 3319092=1719033 0 0

The use of this Table is To finde Any Stars Distance from the North Star: or Pole Star, The Right Ascension & declination Given: Or there declination There distance in degrees & minutes being Given By the Bow or Forestaff &c{.} Example the Buls Eye Aldebaran Anno 1700: Right Ascension 64`=44´ I looke nearest in the Table & finde Against the Right Ascension of 65d=:00m — 88d=44m Then Aldebarans declination being sup_osed to be —15=52_North I Substract it from  88=44  then Rest  ye  distance from  N  ✱  —72=52: Againe the Goat hircus Right Ascension 73`=28´: declination 45`=N40´ by proportion Betweene 70 & 75 I finde 89`=02´ from which I Substract the declination 45`=40´ Rest 43`=22´ from the Pole Star{.} Againe By the Bow or forestaff I Take Arcturus distance from the Pole Star & finde it to be 71`=18´. Then suppose Arcturus Right Ascention To be 210=40: I Looke in the Table Against 210degs=00´ & finde 92`=09´: but if I allow for the 40m: I shall find nerest 92=08 71=18_ from  wch  I Substract  71=18: then Rest  ye  declination20=50 Haveing once found the declination To finde the declination for any Time past or To Come{.} Example then suppose Arcturus declination Be Ano{r} 1700: 20d=.50m the Right Ascension 210d=.40m I Looke as before against 210d=00m & finde 0d=.30m which is Arcturus difference of declination for 100 years. Then for the yeare l800: If I substract from Arcturus declination which is as before 20=50 30 Rest 20d=20m for the declination of Arcturus Ano{r} l800:
Noat that If the declination be north from Capricorn To Cancer Add the Difference But from Cancer To Capricorn: Substract the difference vizd from 270⁢degrs of Right Ascension To 90d: Add the difference Then from 90⁢degs: of Right Ascension to 270⁢degs Substract the difference The declination Being North but If the declination Be South the Contrarye{.} Then from 270d: To :90d: I Substract the difference Then from 90d To :270 I add &c{.} This way of Rectifying The fixt Stars declination seemes somewhat plausable & stands To some Reason which is declared in the Seamans Calender per Henry Phillipps Ano{r} 1660: But As for there difference of Right Ascensions by the said Phillipps Tables The way of Rectifying Seemes very unequall In a very Confuesed disordered Condition. Example the Goat hircus the Difference of Right Ascension for 100 years is – 1d=48m And Orion Right foot But: 1d=15m. Againe the Hinder Guard Sub : the Right Ascension 100: yeares is but 0`=18´ & the Br Star in serpents neck is – 1d=.23m there Right Ascension being partlye the same & Boath having North declination But by what Rule there course is so Ordered I am Altogether Ignorant, without former Observations hath proved it so: If so than Longitude & Latitude I suppose Cannot be Exact Enough: To Shew there True places for Time To Come If they Martch {spiward} as Wing Relates 1`=23´ in 100 years. Or By Gunter 1`=23´ in Longitude & in Latitude Litle or nothing: which If you please a word or two Conserning of which. &c{.}

[Editorial Note 1] The following image spans several lines in the letter and it integrates with the surrounding text, for example at the point where he mentions the "Two Small stars".

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