Category: planetary

Little Gem Nebula – NGC 6818

NGC 6818
NGC 6818

NGC 6818, also known as the Little Gem Nebula, is a small but bright planetary in Sagittarius. It is one of my favorite summer objects because of its annular structure, which is not difficult to see even with my small telescope. The best view comes at 222x with an UHC filter, that makes its ring shape easier to spot. Curiously, it seems that the central dark region is not exactly in the center but slightly off to the north, and the ring is brighter in its southern half. At low powers the nebula shows a lovely greenish-blue color, which is typical of many bright planetaries.

Sketch: 2HB graphite pencil on white paper, scanned and processed with Photoshop CS3

Object Name: NGC 6818, the Little Gem Nebula

Object Type: Planetary nebula

Location: Asturias, Spain

Date: August 31st, 2013 22:20 UT

Instrument: 120mm f/8.3 refractor + Nagler T6 9mm + barlow 2x (222x)

NELM: 5.6

Best regards,

Diego González

https://sites.google.com/site/astrodgonzalez/

Facets of the Dolphin

Objects in Delphinus
Objects in Delphinus

Dolphin Constellation

several objects

Location: The Bullaque – Ciudad Real – Spain

Date: 2013 – September – 01

Media: Graphite Pencil HB, torchon drawing sheet 1 and 130g

Inverted colors with GIMP 2.8

The Dolphin is a summer constellation modest, but can be very interesting for the amateur observer. Spend an evening full observation of its four most significant objects two planetary nebulae and two globular clusters, has been very rewarding.

When observed at the same time, are more striking differences between the two planets:
NGC 6905 is sees as a small disk, very bright and is easily distinguished in the field, and
NGC 6891 is quite the opposite, very small, very bright and compact, ie stellar appearance, difficult to distinguish from the other stars in the field.

The two globular clusters are very different concentration among them, but the different distances from us makes visual texture is very similar:
NGC 6934 (Class VII and 50,000.) Is bright, large, round, with denser center, feathered edges and mottled texture, and
NGC 7006 (Class I and 150,000 al.) Is less bright, somewhat smaller, round, with denser center, feathered edges and mottled texture.
A sample of observation is the sketch I made (picture above).

Finding NGC 6891 has been a challenge, stellar appearance has remained up to 200x and only from the 220x has started to show a very small round and compact disc.
The UHC filter and averted vision were needed in the localization and subsequent observation of nebulae.
For all objects have the best view obtained with the 220x. Good quality of the sky with a 21.41 SQM (roughly Male zone 6 was 6.2).

Greetings to all visitors of this page

Pedro Villamiel 09/04/2013

Blue Flash Nebula

NGC 6905
NGC 6905

On 31 July, we had the best observation conditions. The air was as good as ever before. At the beginning of the night I was looking for the Blue Flash Nebula NGC 6905.
At low magnification, the bright trapezoid fit into the field of view and the pretty star chain that led to the fog was beautiful to see.

The night was wonderful and I could look at many beauties of heaven. The transparency was excellent and everything in warm temperatures and little wind.

Object: NGC 6905 “Blue Flash Nebula”
Telescope: 10 “ACF
Eyepiece 31mm Nagler
Magnification: approx 80x
Location: near Tauberbischofsheim Germany

NGC 6781

NGC 6781
NGC 6781

Hi Asod, sent a recent observation of this magnificent nebula in the constellation of Aquila, has a very important and brightness donut shaped reminiscent lyra M 57, with the help of a filter details are more noticeable, and renamed to this object , the small ring Aquila.

regards.

Object name: NGC 6781
Object type: Planetary Nebula
Location: Bonilla Cuenca ( spain )
Date: 10 August 2013
Hour: 1:20 < 2:00 Media: graphite pencil, processed and inverted gimp 2.8 Optical equipment: Dobsonian telescope 10" F/5 Meade lightbridge. Eye piece Explore scientific 14mm 82° Magnification 90x True field 0,9° Sky conditions: windless sky, good transparency Nelm 5,9 Temperature 12,7°C Relative humidity 30% Borthle scale 3/9 http://dibujodelcielonocturno.blogspot.com.es/

The Big Bear Ate an Owl?

Messier 97
Messier 97

Hello!
I would like to present you my latest sketch made at the astronomical meeting in the Bieszczady Mountains.
The second version is a little brighter for darker monitors

Object: Messier 97 (Owl Nebula)
Equipment: Meade Lightbridge 8” with LVW 13mm and UHC-S filter.
Technique: Pencil on white paper, inverted, some corrections with GIMP (especially stars)
Place and date: May 10, 2013. Natura Park, Stężnica, Bieszczady Mountains
Author: Aleksander Cieśla (Wimmer)

Messier 97 - Lightened
Messier 97 – Lightened

Petals of a Planetary – NGC 2818

NGC 2818
NGC 2818

Aloha!

I submit to you my sketch of planetary nebula NGC 6818 and the beautiful open cluster of stars that frame it, NGC 2818A, in the southern constellation Pyxis. The night was exceptionally clear & still at ~10,000 foot elevation site of Haleakala.

At the eyepiece this planetary appears as a greyish, elongate & irregular ghostly object within a lovely, but dim open cluster of 10th to 14th magnitude stars. On prolonged observation this open cluster takes on the appearance of petals of a flower with the planetary somewhat offset in the central region. The planetary nebula is best seen with averted vision and a narrow pass band filter which is helpful to better define the borders.

Though NGC 2818 & its often cited as a member of this open cluster of stars, accurate measurement of their velocities suggest this is a only chance alignment. http://apod.nasa.gov/apod/ap090122.html

NGC 2818 & NGC 2818A in Pyxis
Planetary Nebula / Open Cluster
Haleakala National Park, Maui HI
5/8/13 8:45pm
12.5” Portaball
14mm ES, 109X
DMG NPB Filter

Cindy (Thia) Krach
Haleakala Amateur Astronomers

NGC 6337 Revisited

NGC 6337
NGC 6337

Hello again! This time i sketched NGC 6337 from the rural skies of Doyle (160km away) at a star party. Luckily the central asterism (http://www.capella-observatory.com/images/PNs/NGC6337Small.jpg) appeared so much better and no filter was needed for the nebula. I used also a bunch of different eyepieces for the challenge.

Object Name: NGC 6337.
Object Type: Planetary Nebula. Apparent mag. ~12.3.
Location: Doyle, Buenos Aires Argentina.
Date: 12/05/2013 3:00-4:00 AM.
Media: Digital tools. PS 5.

Telescope: Dobson 12″ F/5.

Eyepieces: ES 11mm 82º, BST Explorer 8mm/5mm, TMB II Planetary 5mm/4mm.

Filter: No filter needed (yay!).

Bortle Scale: 3, Rural Sky. Very good transparency, average seeing.

Thank you again!!

Leandro Yasutake