Archives For Jupiter

Photo: Jupiter as imaged by the Hubble Space Telescope June 27, 2019.

The NASA/ESA Hubble Space Telescope reveals the intricate, detailed beauty of Jupiter’s clouds in this new image taken on June 27, 2019 by Hubble’s Wide Field Camera 3, when the planet was 644 million kilometers from Earth — its closest distance this year. The image features the planet’s trademark Great Red Spot and a more intense color palette in the clouds swirling in the planet’s turbulent atmosphere than seen in previous years. The observations of Jupiter form part of the Outer Planet Atmospheres Legacy (OPAL) program. Credit: NASA, ESA, A. Simon (Goddard Space Flight Center), and M.H. Wong (University of California, Berkeley)  — Click image to view full-size!

 
Among the most striking features in the image are the rich colors of the clouds moving toward the Great Red Spot. This huge anticyclonic storm is roughly the diameter of Earth and is rolling counterclockwise between two bands of clouds that are moving in opposite directions toward it.

As with previous images of Jupiter taken by Hubble, and other observations from telescopes on the ground, the new image confirms that the huge storm which has raged on Jupiter’s surface for at least 150 years continues to shrink. The reason for this is still unknown so Hubble will continue to observe Jupiter in the hope that scientists will be able to solve this stormy riddle. Much smaller storms appear on Jupiter as white or brown ovals that can last as little as a few hours or stretch on for centuries.

The worm-shaped feature located south of the Great Red Spot is a cyclone, a vortex spinning in the opposite direction to that in which the Great Red Spot spins. Researchers have observed cyclones with a wide variety of different appearances across the planet. The two white oval features are anticyclones, similar to small versions of the Great Red Spot.

The Hubble image also highlights Jupiter’s distinct parallel cloud bands. These bands consist of air flowing in opposite directions at various latitudes. They are created by differences in the thickness and height of the ammonia ice clouds; the lighter bands rise higher and have thicker clouds than the darker bands. The different concentrations are kept separate by fast winds which can reach speeds of up to 650 kilometers per hour.

These observations of Jupiter form part of the Outer Planet Atmospheres Legacy (OPAL) program, which began in 2014. This initiative allows Hubble to dedicate time each year to observing the outer planets and provides scientists with access to a collection of maps, which helps them to understand not only the atmospheres of the giant planets in the Solar System, but also the atmosphere of our own planet and of the planets in other planetary systems.

Jupiter and its Galilean Moons as they will appear the night of July 13, 2019. Labels for Ganymede and Io overlap. Simulation via "Gas Giants".

Jupiter and its Galilean Moons as they will appear the night of July 13, 2019. Labels for Ganymede and Io overlap. Simulation via “Gas Giants”.

 

WRAP-UP: We played peek-a-boo through clouds with Moon and Jupiter all evening. When they first became visible from behind neighboring trees, viewing of our Moon and the planet was fair to poor. As time passed and the atmosphere settled down, seeing became better and late visitors were treated to excellent views of Moon and fair to good views of Jupiter with his four Galilean Moons and even the Great Red Spot (GRS). In fact, just before we closed for the night, the GRS showed not just as a thickening in the Southern Equatorial Band but as a definite shape with red coloration! Saturday’s was not the best view we’ve had of Jupiter but in the end, it was pretty good. Thanks to the 34 visitors who came out on a muggy and buggy night to enjoy the sights!

Stephens Memorial Observatory of Hiram College will host a Public Night Saturday, July 13, from 9:30 to 11:00 PM. On the observing list are two Stephens favorites: Earth’s Moon, and planet Jupiter with its moons. Other objects of interest may also be viewed using the Observatory’s 1901 vintage telescope. Given good viewing conditions, organizers say, the telescope delivers outstanding detail of the Moon and impressive views of Jupiter including, when it’s in position as it will be July 13, the planet’s Great Red Spot feature.

Organizers hope for clear skies since recent weather conditions have made scheduled observing impossible. Cloudy skies at the scheduled starting time cancel the event in which case, the observatory will not open. No reservations are required and there is no admission fee for observatory public nights.

The Observatory is located on Wakefield Road (Rt. 82) less than a quarter of a mile west of Route 700 in Hiram. There is no parking at the Observatory. Visitors may park on permissible side streets near the Post Office, a short distance east of the observatory.

Updates on programming are available via the Observatory’s Twitter feed: @StephensObs or its website: StephensObservatory.org.

Image: Saturn and a few moons as it will appear the night of July 21. Simulation by "Gas Giants."

Saturn and a few moons as they will appear the night of July 21. Simulation by “Gas Giants.”

 

Stephens Memorial Observatory of Hiram College will be open for public observing Saturday, July 21, from 9:30 to 11:00 PM. Given good skies, visitors will see wonderful views of the Moon, giant planet Jupiter with moons of its own, and the “ring world” Saturn. Other objects of interest, such as star clusters, will also be sought, using the Observatory’s vintage telescope.

Cloudy skies at the scheduled starting time cancel the event and in that case, the observatory will not open. No reservations are required and there is no admission fee for observatory public nights.

The Observatory is located on Wakefield Road (Rt. 82) less than a quarter of a mile west of Route 700 in Hiram. There is no parking at the Observatory. Visitors may park on permissible side streets near the Post Office, a short distance east of the observatory.

 

Image: Jupiter and moon Io as they will appear at about 10 PM on July 21, 2018. The Great Red Spot will be front-and-center. Image: Gas Giants simulation.

Jupiter and moon Io as they will appear at about 10 PM on July 21, 2018. The Great Red Spot will be front-and-center. Image: Gas Giants simulation.

FINAL — 8:59 PM: Event canceled due to near-Overcast conditions and nearby rain showers. We will try again in July.

UPDATE – June 23, 4:00 PM: Sky conditions are very changeable but prospects look generally poor for tonight’s scheduled Open Night as clouds dominate and isolated showers roam the region. We will make a final go/no-go decision this evening and announce it here and via Twitter.

Stephens Memorial Observatory of Hiram College will be open for public observing Saturday, June 23, from 9:00 to 11:00 PM. Given good skies, visitors will see wonderful views of the Moon and giant planet Jupiter with moons of its own. Other objects of interest, such as star clusters, will also be sought, using the Observatory’s vintage telescope.

Jupiter and Moons - June 23, 2018, 10 PM - Simulated View

Jupiter and Moons – June 23, 2018, 10 PM – Simulated View

The June event represents a late start to our public outreach season caused by an operational problem with the observatory building constructed in 1939. The problem has been corrected and we hope to present a full season’s schedule of public events.

Cloudy skies at the scheduled starting time cancel the event and in that case, the observatory will not open. No reservations are required and there is no admission fee for observatory public nights.

The Observatory is located on Wakefield Road (Rt. 82) less than a quarter of a mile west of Route 700 in Hiram. There is no parking at the Observatory. Visitors may park on permissible side streets near the Post Office, a short distance east of the observatory.

Photo: Storm over Portage County, Ohio, June 24, 2017 - by James Guilford

Storm over Portage County, Ohio, June 24, 2017 – by James Guilford


 
Saturday night’s Open Night presented “interesting” situations. Shortly after arriving at the observatory, we saw rain arrive and heard thunder. Rain stopped, then started again as another compact thunderstorm passed over the village of Hiram. To the north we could see clear sky just outside the borders of the storm. To the south, over Garrettsville and Manuta, we could spy towering cumulus clouds and radar revealed intense rainfall. All of this weather around 8:30 to 9:00 and even a bit later. But at the appointed hour of 9:30, the sky began to clear overhead and we opened the dome.

There, in the southern shy, was Jupiter shining brightly. Hope? Nope! Storm delays and perhaps a bit of spring growth allowed Jupiter to slip behind the upper branches and leaves of a neighboring tree! Visitors arrived and we looked at mushy images of Jupiter pulled through little gaps between tree leaves. Surprisingly, occasional glimpses were had of the giant planet’s distinctive cloud bands and blurry dots of light — the Galilean Moons — could be seen. Then nothing, as Jupiter arced deeper into the branches. We fished around for a while, looking at a couple of bright stars through the murky atmosphere to the south. Saturn was lost in other trees and the messy air.

The faint, fuzzy Ring Nebula would be impossible, no? No. The sky to the east-northeast, inhabited by Lyra and the Ring, was crisp and clear. We rotated the dome, swung the big scope into position, and quickly found Messier 57 – the Ring Nebula. Of the night’s 19 visitors, those who were able to wait out the passage of clouds and darkening of sky were rewarded with clear, bright views of the famous planetary nebula; the beautiful end to a strange and frustrating evening.

Photo: The Ring Nebula (aka Messier 57). Credit: Walker County Observatory / Science@NASA - http://science.nasa.gov

The Ring Nebula (aka Messier 57). Credit: Walker County Observatory / Science@NASA – http://science.nasa.gov

Stephens Memorial Observatory of Hiram College will be open for public observing Saturday, June 24, from 9:30 to 11:00 PM. Featured that night will be Saturn, Jupiter, and the Ring Nebula. Other objects of interest may also be viewed.

The night’s observing depends upon clear skies and those have been in short supply this season! Cloudy skies at the starting time cancel the event and, in that case, the observatory will not open. No reservations are required and there is no admission fee for observatory public nights.

The Observatory is located on Wakefield Road (Rt. 82) less than a quarter of a mile west of Route 700 in Hiram. There is no parking at the Observatory. Visitors may park on permissible side streets near the Post Office, a short distance east of the observatory.

Photo: This image shows Jupiter's south pole, as seen by NASA's Juno spacecraft from an altitude of 32,000 miles (52,000 kilometers). Image credit: NASA/JPL-Caltech/SwRI/MSSS/Betsy Asher Hall/Gervasio Robles

This image shows Jupiter’s south pole, as seen by NASA’s Juno spacecraft from an altitude of 32,000 miles (52,000 kilometers). Image credit: NASA/JPL-Caltech/SwRI/MSSS/Betsy Asher Hall/Gervasio Robles

 

This image shows Jupiter’s south pole, as seen by NASA’s Juno spacecraft from an altitude of 32,000 miles (52,000 kilometers). The oval features are cyclones, up to 600 miles (1,000 kilometers) in diameter. Multiple images taken with the JunoCam instrument on three separate orbits were combined to show all areas in daylight, enhanced color, and stereographic projection.

JunoCam’s raw images are available at www.missionjuno.swri.edu/junocam for the public to peruse and process into image products.

NASA’s Jet Propulsion Laboratory manages the Juno mission for the principal investigator, Scott Bolton, of Southwest Research Institute in San Antonio. Juno is part of NASA’s New Frontiers Program, which is managed at NASA’s Marshall Space Flight Center in Huntsville, Alabama, for NASA’s Science Mission Directorate. Lockheed Martin Space Systems, Denver, built the spacecraft. Caltech in Pasadena, California, manages JPL for NASA.

More information about Juno is online at http://www.nasa.gov/juno and http://missionjuno.swri.edu