Thread: ricci70's posts regarding calcualtions on his/her website

For completeness, after the extreme lunar perigees, I have also calculated the extreme apogees. To notice as unlike the extreme perigees, the apogees are very less distant from the middle valor.

www.pierpaoloricci.it/dati/apogeilunari_eng.htm

All about the 3 Cassini's Laws and the Maxima lunar librations.

www.pierpaoloricci.it/dati/librazioni_eng.htm

A duo is a pair of eclipses separated by one lunation (synodic month). I have listed all duos from year 0 to 3000.
In some rare years the duo is in the same month.

www.pierpaoloricci.it/dati/duosolari_eng.htm

According to the theory in one year there can be 2,3,4 or 5 solar eclipses, considering all type, total, partial, annular and hybrid, I have created a page with the eclipses divided in number for year.

http://www.pierpaoloricci.it/dati/ec...leanno_eng.htm

I have extended the study of the solar eclipses to the various type divided year by year, useful to the goals of search.

http://www.pierpaoloricci.it/dati/ti...sisole_eng.htm

After the analysis of the eclipses of Sun I propose the eclipses of Moon. Here there is a list with the number of all the types of eclipse in one year.

http://www.pierpaoloricci.it/dati/ec...naanno_eng.htm

Considering that in these months the rings of Saturn are invisible, I list the next periods in which the rings will be to the maximum opening:

www.pierpaoloricci.it/dati/saturnomax_eng.htm

I have listed the solar eclipses in one year for groups, useful for the one that makes historical searches and not only.

http://www.pierpaoloricci.it/dati/ec...letipi_eng.htm

There is also a nice web tool to visualise the orientation of Saturn's rings and moons for a certain day and viewing angle.

http://pds-rings.seti.org/tools/viewer2_sat.html

I have extended the study of the lunar eclipses to the various type divided year by year, useful to the goals of search.

http://www.pierpaoloricci.it/dati/ti...siluna_eng.htm

A duo is a pair of eclipses separated by one lunation (synodic month). I have listed all duos from year 0 to 3000. In some rare year the duo is in the same month.

www.pierpaoloricci.it/dati/duolunari_eng.htm

A small summary about the cycle of Saros and its multiples.

www.pierpaoloricci.it/lezioni/saros_eng.htm

It's a rare event when the paths of one eclipse crosses that of another one in close succession. The table lists all cases from 2000 to 2100 when for a given place are visible two total or annular eclipses whithin 6 months

http://www.pierpaoloricci.it/dati/ec...oposto_eng.htm

I have merged all of ricci70's posts regarding his/her website to one thread.

Cheers,
Dishmaster.

I have created these curious graphs that connect the magnitude of the eclipses of Sun and Moon with the time. To notice the periods of "empty" that create strange cyclicity.

http://www.pierpaoloricci.it/dati/ec...tudine_eng.htm

Originally Posted by ricci70

I have created these curious graphs that connect the magnitude of the eclipses of Sun and Moon with the time. To notice the periods of "empty" that create strange cyclicity.

http://www.pierpaoloricci.it/dati/ec...tudine_eng.htm

The links to the graphs on that website don't work. Can you check them, please?

Now the link is active

A list of years without umbral lunar eclipses

http://www.pierpaoloricci.it/dati/ec...oombra_eng.htm

I have wrote a little lesson about the lunar occultations, usefull for newbye.

http://www.pierpaoloricci.it/lezioni...lunari_eng.htm

Originally Posted by ricci70

I have created these curious graphs that connect the magnitude of the eclipses of Sun and Moon with the time. To notice the periods of "empty" that create strange cyclicity.

http://www.pierpaoloricci.it/dati/ec...tudine_eng.htm

Are those periods somehow linked to the Saros cycle?

I have updated the files about annular and total solar eclipses:

www.pierpaoloricci.it/dati/eclissisole5m_eng.htm

http://www.pierpaoloricci.it/dati/ec...ole10m_eng.htm

In this period "without" occultations of planets I have created a panorama on the next ones.

http://www.pierpaoloricci.it/dati/oc...ramica_eng.htm

A graphic summary on the number of the eclipses of Sun and Moon in 30 centuries

www.pierpaoloricci.it/dati/numeroeclissi_eng.htm

I have added a panorama for the lunar occultations of bright stars for the years 2009-2020 too.

http://www.pierpaoloricci.it/dati/oc...ramica_eng.htm

On day 13 April will be an occultation of Antares 13 April, it will be visible only in central America.

http://www.pierpaoloricci.it/eventi/...-04-09_eng.htm

In some rare cases the eclipsed Moon occults a planet; in other cases there is a grazing. The following table is a list of events in which a planet is near the Moon during a partial or total eclipse.

http://www.pierpaoloricci.it/dati/lu...ianeti_eng.htm

Planetary trios

I have updated my page about planetary trios:

www.pierpaoloricci.it/dati/triipia_eng.htm

Bright star or stellar clusters near the Moon during a lunar eclipse :

http://www.pierpaoloricci.it/dati/lu...mmassi_eng.htm

It's frequent an occultation of a planet by the Sun, but it's very rare that it happens during a solar eclipse. These events are not observable, I have calculated only for curiosity.

http://www.pierpaoloricci.it/dati/so...ianeti_eng.htm

No, they are not late wishes, but a page rich in curiosity on the Easter.

www.pierpaoloricci.it/dati/pasqua_eng.htm

Very interesting are the eclipses when a bright planet is near the eclipsed Sun. The table lists all the events
from year 2000 to 2100 whit 2 planets in a range of 5° from the center of the Sun during a total or annular eclipse

http://www.pierpaoloricci.it/dati/so...vicini_eng.htm

The motion of the Earth around the Sun, and that of the others planets, isn't constant, but varies between 362d19h18m and 368g4h9m. Indeed if you see the table below, the perihelion's day is not the same. What is the reason for this difference? ...

www.pierpaoloricci.it/dati/perielioterra_eng.htm

A big list of conjunctions between two planets and a bright star.

http://www.pierpaoloricci.it/dati/tr...stelle_eng.htm

Polaris, or alpha Ursae minoris, is the closest star to the northern celestial pole. Because of the precession the pole is approaching the star. A summary on its motion

www.pierpaoloricci.it/dati/stellapolare_eng.htm

I have update the page on planetary groupings of 4 planets.

www.pierpaoloricci.it/dati/quartetti_eng.htm

The interval of the time between two consecutive transits of the center of the Sun trough the meridian of a given place is called a true solar day. This interval is not constant but varies between 23h59m39s and 24h0m30s, with the present values of the obliquity of the ecliptic...

http://www.pierpaoloricci.it/dati/gi...revero_eng.htm

Planetary groupings with 3 planets and the Moon

I have updated my page on multiple lunar-planetary grouping

http://www.pierpaoloricci.it/dati/qu...ianeti_eng.htm

On day 21 June in the north hemisphere will begin the summer

www.pierpaoloricci.it/dati/estate_eng.htm

I have updated my page about the planetary groupings Moon-Planets

http://www.pierpaoloricci.it/dati/tr...ianeti_eng.htm

If we define alignement the event when all planets have the same heliocentric longitude, from Mercury to Neptune, also if we neglet the differences in latitude and the orbital inclination.
In the best case, we can consider that the planets can be in the same sector, a very narrow sector (heliocentric sector!), the minimum sector with 8 planets is only 43° in a time span of 9000 years

http://www.pierpaoloricci.it/dati/al...netari_eng.htm

The length of the synodic month is 29.5306 days. It would wait us therefore that the full Moon falls after 14.77 days and the first quarter after 7.38 days.
But these are mean and very varying values. This is due to the fact that the Moonù

www.pierpaoloricci.it/dati/etaluna_eng.htm

A lunation is the time interval between two similar lunar phases (from New Moon to New Moon or from Full Moon to Full Moon). For this table I used from New Moon to New Moon, when the apparent geocentric ecliptical longitudes of the Moon and the Sun are equal. The mean duration of the lunation is 29d 12h 44m, but it is variable...

www.pierpaoloricci.it/dati/lunazioni_eng.htm

On day 31, the Moon will occult Antares; only the observer of north africa and southern Asia can see the phenomena.

http://www.pierpaoloricci.it/eventi/...-07-09_eng.htm

I have listed all intervals with 3 solar eclipses, total or annular, in a short time interval, about 7 years, from 2000 to 2400.

www.pierpaoloricci.it/dati/3eclissisole_eng.htm

I saw the title and looked at the name of the maker


sorry but I have to ask
how the heck can you not know if your a he or a she?

I created a list that shows the times when the impact mark will be visible

http://www.pierpaoloricci.it/eventi/...impact_eng.htm

A table with the annular and total solar eclipses until 2040, nation per nation.

http://www.pierpaoloricci.it/dati/ec...azioni_eng.htm

Painted globe

Very strange maps of the Earth totally covered by annularity and totality paths. When Will be a totally painted globe?

http://www.pierpaoloricci.it/dati/te...issata_eng.htm

Originally Posted by ricci70

A duo is a pair of eclipses separated by one lunation (synodic month). I have listed all duos from year 0 to 3000.
In some rare years the duo is in the same month.

www.pierpaoloricci.it/dati/duosolari_eng.htm

I have updated the page.

Originally Posted by ricci70

A duo is a pair of eclipses separated by one lunation (synodic month). I have listed all duos from year 0 to 3000. In some rare year the duo is in the same month.

www.pierpaoloricci.it/dati/duolunari_eng.htm

I have updated the page. :-D

I have updated the page

http://www.pierpaoloricci.it/dati/ec...natale_eng.htm

Originally Posted by ricci70

Originally Posted by ricci70

A duo is a pair of eclipses separated by one lunation (synodic month). I have listed all duos from year 0 to 3000. In some rare year the duo is in the same month.

www.pierpaoloricci.it/dati/duolunari_eng.htm

I have updated the page. :-D

I have updated the page with the double lunar duos,

http://www.pierpaoloricci.it/dati/do...lunari_eng.htm

I have updated my new page with the double solar duos

http://www.pierpaoloricci.it/dati/do...solari_eng.htm

A small list of very rare simultaneus occations of planets by the Moon

www.pierpaoloricci.it/dati/tripleoccpia_eng.htm

A lot of people think that is one unlucky day, yet can be interesting astronomical phenomena:

http://www.pierpaoloricci.it/dati/ec...e29feb_eng.htm

I have created a list of asteroidal occultations of bright stars in this century

www.pierpaoloricci.it/dati/occaststelle_eng.htm

I have updated the lunar eclipses on Christstmas day too.

http://www.pierpaoloricci.it./dati/e...natale_eng.htm

Easter falls on the Sunday which follows the first Full Moon after the spring equinox. And lunar eclipses occur only at Full Moon!
At first view this phenomena seems impossible, but we know that for the ecclesiastical rules the spring equinox is fixed at March 21 and
that the Full Moon is taken from ecclesiastical tables. Sometimes the astronomical ephemerides differ from the ecclesiastical tables.

www.pierpaoloricci.it/dati/eclissipasqua_eng.htm

Yes

Then please suggest a good software!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Originally Posted by kakarot

Then please suggest a good software!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

A good software for what? Be specific.

Ophiolite wrote:
kakarot wrote:
Then please suggest a good software!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
A good software for what? Be specific.

Specific then it is-----
A good software for simulation of the Universe. Simple.

1. Do you actually believe there is any software anywhere that can simulate the universe? (Here's a hint - there is not)
2. Did you mean you want a software that can calculate the position of the stars and planets at different times and dates? (If you did that's what all Ricci's posts are about.)
3. If neither of these, what did you mean.
4. Consult a dictionary for the difference between simple and simplistic.

Very rarely can happen that an asteroid occult another asteroid. To title of curiosity I have calculated a list of the next events.

http://www.pierpaoloricci.it/dati/oc...eroidi_eng.htm

Oppositions of Mars occur at an average interval of 780 days; because of the eccentricity of the orbits, opposition's date and least distance don't coincide, but can be as large as 9 days.
In the favorable periheliac oppositions, Mars approaches the Earth within 0.4 astronomical unit; these oppositions repeat at intervals of 15 years or 17 years. Each opposition is followed by a very similar one 79 years later.
Mars has a risonance with the Earth of 79 years (15+15+15+17+17) or 284 years or 363 years.
...

http://www.pierpaoloricci.it/dati/op...imarte_eng.htm

I have added a page with the very rare lunar eclipses on February 29

http://www.pierpaoloricci.it/dati/ec...a29feb_eng.htm

Considering that this month is rich of conjunctions, today between Venus and Uranus ( 0.61°), on day 8 between Mercury and Jupiter (1.07°) and on day 15 between Mercury and Uranus (0.66°), I have calculated a detailed list of events for the whole millennium.

http://www.pierpaoloricci.it/dati/co...ianeti_eng.htm

Only for curiosity, the next event will be in the year 2096, I have calculated the conjunctions between 4 planets and the Moon.

http://www.pierpaoloricci.it/dati/qu...ianeti_eng.htm

This is probably not what you are looking for, but thought it was worth mentioning.

http://orbit.medphys.ucl.ac.uk/

In very rare occasions Mercury transits on the Sun with only a part of its disk or rather the least separation between the centers of the two bodies it is slightly superior in comparison to the solar radius.
The last event is happened on November 15th 1999, but for the next we must attend six centuries.

http://www.pierpaoloricci.it/dati/tr...radmer_eng.htm

I have created on my site a page with a study on the duration of the twilights. The link is the following

www.pierpaoloricci.it/dati/crepuscoli_eng.htm

A usefull table for the calculation of the solar obscutation.

www.pierpaoloricci.it/dati/oscuramento_eng.htm

Usually a solar eclipse, total or annular, is preceded or followed by a lunar eclipse (a partial or one/two penumbral).
In very rare case a total o annular solar eclipse is accompanied by a lunar total eclipse

http://www.pierpaoloricci.it/dati/ec...talisl_eng.htm

I have created a table that shows the angular lenght of the solar crescent during a partial solar eclipse as function of the magnitude and the diameters of Sun and Moon

www.pierpaoloricci.it/dati/falcesolare_eng.htm

Sometime during a solar eclipse can happen that Mercury or Venus are in transit.
But...

http://www.pierpaoloricci.it/dati/tr...clissi_eng.htm

Minimum spatial approaches (below 100000 kms) between asteroids with diameter over 10 kilometers

http://www.pierpaoloricci.it/dati/av...eroidi_eng.htm

I have listed the dates when Mercury and Venus have their greatest elongation with a time difference of only 3 days until 2100

http://www.pierpaoloricci.it/dati/el...isimul_eng.htm

Only for curiosity I have listed the occultation for this century

www.pierpaoloricci.it/dati/occsolepia_eng.htm

It can happen thant for long time don't happen total solar eplipses wisible on the Earth...

http://www.pierpaoloricci.it/dati/no...otsole_eng.htm

A table with the day with shadows on the disk of Jupiter during more than 4 hours...

www.pierpaoloricci.it/dati/ombregiove_eng.htm

Groupings between planets and bright asteroids

I have calculated all the groupings of this century between planets and bright asteroids.

http://www.pierpaoloricci.it/dati/tr...ianeti_eng.htm

Only for curiosity I have calculated the extreme speeds of the asteroids at perihelium and aphelium.

http://www.pierpaoloricci.it/dati/ve...eroidi_eng.htm