Author Topic: Newbie seeking advice on a handful of topics: light pollution, eyepieces, and fi  (Read 26583 times)

Cesar Lawhorn

  • Active Astronomer
  • ***
  • Posts: 126
  • Activity:
    0%
  • Reputation: +0/-0
    • View Profile
Hi!

I'm brand new to amateur astronomy, having just acquired my first scope - an 8", f6 dob (XT8 Plus, specifically). I've taken it out every clear night and I'm already sure that this will be a hobby I will be investing some time (and money) in. I've spent some time reading through these forums, and have read through two highly recommended books ("Nightwatch" & "Turn Left at Orion"), but there are some things I could use some further advice on:

1. Light pollution: I live in an urban environment (Alameda, CA - basically downtown Oakland) and the light pollution is awful. I have 3 young kids, include a 1 month old, so my ability to get away from home to seek out dark skies will be limited for the foreseeable future. I understand that many deep sky objects will remain out of reach from my location, but I still want to seek out all the open clusters and multi star systems and any other bright objects that I can from my own backyard. Considering my gear, and that I have no GoTo technology, I'm reliant on star hopping to find my targets, which is quite difficult with my severe light pollution.I had considered getting an extreme wide angle eyepiece at low power with which to break through the pollution to navigate the skies for star hopping purposes.Is this a feasible solution? Perhaps coupled with a broadband filter?Any other advice on star hopping in severe light pollution without GoTo technology? Also, can you please recommend a resource for light pollution maps?

2. Filters:I'm considering purchasing two different filters, a broadband filter to dampen light pollution (noted above - although I question how helpful it will be), and a narrowband filter for nebula viewing from home and on rare occasions when I can get away from the city. Regarding the narrowband, I've read great reviews on the DGM NPB, so that's currently at the top of my list. With that in mind, I'd rather not pay the full $150, so I'm mulling the idea of getting the "cosmetic 2nd" discounted piece from Amazon (http://www.amazon.co.../dp/B00MLHQW7K/), but I'm concerned about the fact that the flaws include "cosmetic flaws, such as pinholes, sleeks, or light scratches". Are these flaws significant when it comes to filters?Or should I trust DGM when they say "flaws which have zero impact on optical performance. Spectral characteristics are the same high quality as our first quality filters and side by side performance is indistinguishable."

3. Eyepieces:There's so much information out there on eyepieces, it's difficult to settle on which eyepieces to target next. The XT8 Plus comes with an Orion 10mm plossl and 28mm "Deep View". The plossl seems well enough for now, but I don't feel that the Deep View provides enough FOV for a lower power eyepiece, so I think a low power, wide angle eyepiece will be my next purchase.With that in mind, any recommendations on the ideal "True FOV" to shoot for low power viewing? I know 2"+ will be necessary to take in all of thePleiades and Andromeda (for example), but is 2" considered overkill, or is this a good TFOV to shoot for? Any other eyepiece advice you can provide regarding building a strong initial eyepiece set would be helpful as well (considering mid to high-tier options).

Thanks a lot!



auto insurance

  • Active Astronomer
  • ***
  • Posts: 176
  • Activity:
    100%
  • Reputation: +0/-0
    • View Profile
cheapest car insurance companies cheapest auto insurance in texas cheapest auto insurance get auto insurance online

Best Payday Loan

  • Jr. Astronomer
  • **
  • Posts: 56
  • Activity:
    31.33%
  • Reputation: +0/-0
    • View Profile

auto ins

  • Jr. Astronomer
  • **
  • Posts: 43
  • Activity:
    26%
  • Reputation: +0/-0
    • View Profile
auto insurance estimator cheapest auto insurance cheapest car insurance quotes cheap full coverage auto insurance

e insurance auto

  • Active Astronomer
  • ***
  • Posts: 157
  • Activity:
    99.33%
  • Reputation: +0/-0
    • View Profile

auto insurance

  • Active Astronomer
  • ***
  • Posts: 176
  • Activity:
    100%
  • Reputation: +0/-0
    • View Profile
elephant auto insurance cheapest auto insurance lowest auto insurance rates cheapest auto insurance

Direct Lender Loans

  • New Astronomer
  • *
  • Posts: 13
  • Activity:
    8.67%
  • Reputation: +0/-0
    • View Profile
unsecured loan loans same day payday loans

auto insurance

  • Active Astronomer
  • ***
  • Posts: 176
  • Activity:
    100%
  • Reputation: +0/-0
    • View Profile
insurance companies buy car insurance online compare multiple auto insurance quotes auto insurance companies

Direct Lender Loans

  • New Astronomer
  • *
  • Posts: 13
  • Activity:
    8.67%
  • Reputation: +0/-0
    • View Profile
personal loans with poor credit loans bad credit cash loans online online loans for bad credit

Best Payday Loan

  • Jr. Astronomer
  • **
  • Posts: 56
  • Activity:
    31.33%
  • Reputation: +0/-0
    • View Profile
online payday advance online payday online payday loans instant approval online payday loans no credit check

Paydayloan

  • Jr. Astronomer
  • **
  • Posts: 46
  • Activity:
    25.33%
  • Reputation: +0/-0
    • View Profile
poor credit loans guaranteed approval loans guaranteed approval guaranteed loan loans guaranteed approval

auto insurance

  • Active Astronomer
  • ***
  • Posts: 176
  • Activity:
    100%
  • Reputation: +0/-0
    • View Profile
auto insurance florida best auto insurance rates best auto insurance rates ameriprise car insurance

e insurance auto

  • Active Astronomer
  • ***
  • Posts: 157
  • Activity:
    99.33%
  • Reputation: +0/-0
    • View Profile
cheapest car insurance companies best car insurance companies 2018 cheap car insurance cheapest car insurance companies

e insurance auto

  • Active Astronomer
  • ***
  • Posts: 157
  • Activity:
    99.33%
  • Reputation: +0/-0
    • View Profile
usaa auto insurance usaa auto insurance usaa auto insurance quote usaa auto insurance

progressive auto ins

  • Active Astronomer
  • ***
  • Posts: 101
  • Activity:
    67.33%
  • Reputation: +0/-0
    • View Profile
the general auto insurance direct general auto insurance direct general auto insurance affordable car insurance