ROYAL ASTRONOMICAL SOCIETY OF CANADA
                       Observation of Jovian Satellite Phenomenon

Details of Predicted Phenomenon (see Observer's Handbook):

Local: Date ........................ 19....  Predicted Time ......h ......m  Zone ......

U. T.: Date ........................ 19....  Predicted Time ......h ......m

Satellite .................................  Phenomenon ................................
________________________________________________________________________________________

                                ROYAL ASTRONOMICAL SOCIETY OF CANADA

                                  Observation of the Planet Jupiter

Local: Date ............................. 19....  Time .....................  Zone ..........

U. T.: Date ............................. 19....  Time .....................

Telescope: Aperture ............................  Type .................  Power .............
  
Seeing (0 worst-10 best) .......................  Transparency (0 worst-5 best) .............

Central Meridian: I ..........................  II .....................

                               ROYAL ASTRONOMICAL SOCIETY OF CANADA

                              Observation of the Planet .............................

Local: Date ............................. 19.... Time ...............................  Zone .........

U. T.: Date ............................. 19.... Time ...............................

Telescope: Aperture ............................ Type ...........................  Power ............

Seeing (o worst-10 best) ....................... Transparency (0 worst-5 best) ......................

                 THE ROYAL ASTRONOMICAL SOCIETY OF CANADA
                 ________________________________________

                                                               Bulletin No. 15

                            PLANETARY SECTION


Greetings!

This is the last bulletin that you will receive under this heading. This does
NOT mean that Planetary Bulletins will not be issued any longer, but merely
that the various Sections have been abolished and the Job of co-ordinating
observations has been given to C000CA.

            THE ROYAL ASTRONOMICAL SOCIETY OF CANADA
            ________________________________________

                                                             Bulletin No. 14

                     PLANETARY SECTION


POSSIBLE MAGNITUDE VARIATIONS OF SATURN'S SATELLITES:


For many years it has been known that the magnitude of Iapetus, Saturn's
eighth moon, is variable. Recent observations have indicated that some
of the other moons may vary in brightness too (ref. 1, 2). This was pointed
out in Planetary Bulletin No.9. However, observers were left to their own

                                THE ROYAL ASTRONOMICAL SOCIETY OF CANADA
                                                                     Bulletin No. 12

                             PLANETARY SECTION


GREETINGS fellow planetary observers! Since the last bulletin was issued, winter set
in and I was expecting a corresponding drop in the number of observations received.
However, this is not the case! Evidently many of you are using anti-freeze for blood,
as we have been getting a good number of mid-winter observations.

                 THE ROYAL ASTRONOMICAL SOCIETY OF CANADA

                                                                  Bulletin No. 11

                              PLANETARY SECTION

Summer has passed and now the Centres should be starting their programs again. We
hope these will include observing the planets.

MARS:   Drawings of this planet made during the recent apparition would be appreciated
as arrangements have been made to exchange observations with the Mars section of the
British Astronomical Association.

                   THE ROYAL ASTRONOMICAL SOCIETY OF CANADA

                                                                       Bulletin No.10

                                PLANETARY SECTION

Since the last bulletin was issued in April, a great deal has happened in space to
make the work of we astronomers more valuable than ever before .. and the need
for good observations is even more apparent.

As you are aware, the International Union of Amateur Astronomers was founded this
year and the machinery set up for the exchange of information. Observations can

             ASSOCIATION OF LUNAR AND PLANETARY OBSERVERS
               Comets Section           January 11, 1968

                       Comet Ikeya-Seki 1967n

     The fourteenth comet of 1967 was discovered in the morning sky
by Ikeya and Seki on December 28th, apparently within minutes of each
other. Tsutomu Seki has recently been sweeping with 5-inch 20 power
binoculars, and he also found Cornet 1966d with these. They give a 3° field
     This comet is going to be within binocular range and circumpolar

  ASSOCIATION OF LUNAR AND PLANETARY OBSERVERS
        Comets Section        Jan. 2, 1968

        New Comet Ikeya-Seki 1967n

Dec. 28.85 UT  16h 32m.0   -2° 36' mag. 9 Ikeya
	28.85  16  32 .2   -2  34       9 Seki
	30.85  16  33 .9   -1  56       9 Tomita
Jan.     1.82  16  35 .6   -1  19       9 Tomita

For visual magnitude estimates around 9th mag.
refer to the Smithsonian catalogue or
variable star charts.

Dennis Milon, 378 Broadway, Cambridge, Mass.
                                  02139